Azure est une plateforme de cloud computing proposant divers services comme le calcul, le stockage, et les réseaux.

Que teste l'examen AZ900 ?

C'est un examen qui certifie les connaissances générales sur les services cloud et les concepts Azure.

Quels facteurs influencent les coûts d'Azure ?

Cela peut être influencé par le type de service choisi, l'usage, et la région géographique.

Quelles fonctions principales fournit Azure Advisor ?

Elle propose des recommandations pour optimiser la sécurité, la performance, et les coûts des ressources Azure.

Comment Azure gère-t-il la haute disponibilité ?

Ce sont des modèles qui assurent une haute disponibilité et tolèrent les pannes en utilisant des paires de régions et zones de disponibilité.

Qu'est-ce qu'Azure IoT Hub ?

C'est une plateforme gérée permettant des communications bidirectionnelles entre appareils IoT et applications.

À quoi sert la protection DDoS en Azure ?

Elle protège les ressources réseau Azure des attaques DDoS en fournissant des capacités de mitigation avancées.

Comment Azure assure-t-il la sécurité et la conformité ?

La sécurité d’Azure est assurée par des niveaux de sécurité multicouches et les certifications de conformité.

Que permet de faire le portail Azure ?

Il fournit une interface graphique pour gérer les ressources Azure et suivre l'utilisation des services.

Quels sont les services d'identité principaux d'Azure AD ?

Cela inclut l'authentification unique, l'accès conditionnel et l'authentification multi-facteurs.

(2024 UPDATE LINK IN DESCRIPTION) - AZ-900 Azure Fundamentals Certification Exam Cram -

01:58:23

https://www.youtube.com/watch?v=gH3pwWO0Q9Y

Zusammenfassung

TLDRLa vidéo guide les téléspectateurs à travers une préparation au test des Fondamentaux d'Azure (AZ900), en abordant des concepts essentiels comme les modèles de cloud, les services Azure, et la gestion des coûts. Elle discute de la sécurité, des niveaux de service, et des différents outils à utiliser pour réussir l’examen. Le cours examine également les services d'identité d'Azure tels que l'Active Directory, les modèles de dépenses (comme les réservations de capacité et le pricing spot), et explique l'utilisation d'outils comme le calculateur de prix Azure. Le formateur insiste sur l'importance de comprendre les concepts et les niveaux techniques tout en décrivant les procédures de mise à disposition et les niveaux de vie des services Azure.

Mitbringsel

☁️ Azure Fundamentals est conçu pour nouveaux aux concepts cloud.
🔑 Comprendre les concepts cloud comme IaaS, PaaS, et SaaS est essentiel.
🔍 Le modèle de responsabilité partagée est fondamental à connaître.
🔐 Azure sécurité inclut la sécurité multicouche et les options avancées de conformité.
💡 Optimiser les coûts implique de comprendre les options comme les réservations d’instances.
📊 Azure Advisor aide à gérer et optimiser les ressources existantes.
📅 Il est vital de comprendre les cycles de vie des services Azure: prévisualisation et disponibilité générale.
🛠️ Utiliser les outils comme le Portail Azure et CLI pour gérer les ressources.
💼 La gestion et le respect des politiques sont essentiels à une utilisation efficace d'Azure.
🎓 Le cours propose un survol rapide mais approfondi des concepts pour réussir l'examen.

Zeitleiste

00:00:00 - 00:05:00
Le cours commence en expliquant que l'examen Azure Fundamentals (AZ900) peut être intimidant pour ceux qui débutent, et l'instructeur s'engage à optimiser le temps de préparation en couvrant les éléments des domaines objectifs de l'examen.
00:05:00 - 00:10:00
L'examen AZ900 est divisé en six domaines : concepts de cloud, services Azure de base, solutions et outils de gestion de base, sécurité, identité, gouvernance, confidentialité et conformité, et enfin la gestion des coûts et les accords de niveau de service.
00:10:00 - 00:15:00
L'instructeur rappelle que l'examen se concentre sur la compréhension et la description des modèles de cloud tels que IaaS, PaaS et SaaS, ainsi que sur les modèles de cloud privé, hybride et public.
00:15:00 - 00:20:00
Les modèles de cloud ainsi que le modèle de responsabilité partagée sont expliqués, soulignant comment les responsabilités sont partagées entre Microsoft et l'utilisateur en fonction du service utilisé.
00:20:00 - 00:25:00
Il est précisé que l'économie de coût et la souplesse opérationnelle sont des avantages majeurs du cloud public et hybride, permettant d'optimiser la gestion entre legacy et modernité.
00:25:00 - 00:30:00
Les services comme Azure Virtual Machines (IaaS), Azure App Services (PaaS), et les services SaaS comme Office 365 sont détaillés avec l'importance de la configuration et de l'orchestration.
00:30:00 - 00:35:00
La capacité d'évolution, l'élasticité, l'agilité, et les économies d'échelle sont discutées comme des caractéristiques fondamentales du cloud computing, notamment en termes de gestion des coûts.
00:35:00 - 00:40:00
Des éléments clés tels que la tolérance aux pannes, la haute disponibilité, et la récupération après sinistre sont définis, expliquant comment Azure offre des solutions pour assurer la continuité des services.
00:40:00 - 00:45:00
Les concepts d'Azure comme les régions géographiques, les paires de régions, et les zones de disponibilité sont introduits expliquant leur importance dans la gestion des ressources.
00:45:00 - 00:50:00
La structure des groupes de gestion d'Azure est clarifiée, expliquant comment elle permet d'organiser les abonnements, les groupes de ressources et les ressources elles-mêmes.
00:50:00 - 00:55:00
Les composants du réseau Azure tels que les Virtual Networks et l'importance de VPN Gateway, et l'Express Route pour les connexions de réseau sécurisé sont présentés.
00:55:00 - 01:00:00
Les divers types de stockage dans Azure - Blob, File, Disk, et les niveaux d'accès aux données (chaud, frais et archive) sont expliqués en termes d'utilisation et de coût.
01:00:00 - 01:05:00
Les services de base de données Azure, notamment Cosmos DB pour NoSQL, SQL Azure pour SQL Server, et d’autres services de base de données sont décrits pour mieux comprendre leur application.
01:05:00 - 01:10:00
Les outils de gestion et d'optimisation disponibles comme l'Azure Pricing Calculator et le TCO Calculator sont introduits pour aider à la planification et à la gestion des coûts.
01:10:00 - 01:15:00
L'approche de DevOps avec Azure DevOps et Github est abordée pour expliquer comment l'intégration CI/CD favorise le développement agile en continu.
01:15:00 - 01:20:00
Les solutions IoT d'Azure, telles que l'IoT Hub, sont présentées en expliquant leur fonctionnalité de communication bidirectionnelle pour la gestion des appareils IoT.
01:20:00 - 01:25:00
Les fonctionnalités de sécurité d'Azure, notamment Azure Security Center et Azure Sentinel, sont soulignées pour expliquer comment gérer et surveiller la sécurité des ressources.
01:25:00 - 01:30:00
Les concepts clés liés à la gouvernance comme les rôles et les accès sont introduits pour démontrer comment la politique Azure et les blueprints renforcent la conformité structurelle.
01:30:00 - 01:35:00
Les fonctionnalités d'identité et de sécurisation des accès Azure Active Directory sont explicitées, notamment l'authentification conditionnelle et le MFA pour sécuriser l'accès aux ressources.
01:35:00 - 01:40:00
Les engagements de Microsoft en matière de conformité sont discutés, en soulignant la transparence des pratiques de sécurité des données et l'importance des certifications de conformité Azure.
01:40:00 - 01:45:00
Les modèles de tarification et de gestion des coûts d'Azure sont décrits, y compris les modèles de tarification réservée et les bénéfices de l'utilisation hybride pour maximiser les économies.
01:45:00 - 01:58:23
Finalement, les accords de niveau de service et le cycle de vie des services Azure sont abordés pour expliquer comment assurer la disponibilité et comprendre les termes de service Azure.

Mind Map

Häufig gestellte Fragen

Qu'est-ce qu'Azure ?
Azure est une plateforme de cloud computing proposant divers services comme le calcul, le stockage, et les réseaux.
Que teste l'examen AZ900 ?
C'est un examen qui certifie les connaissances générales sur les services cloud et les concepts Azure.
Quels facteurs influencent les coûts d'Azure ?
Cela peut être influencé par le type de service choisi, l'usage, et la région géographique.
Quelles fonctions principales fournit Azure Advisor ?
Elle propose des recommandations pour optimiser la sécurité, la performance, et les coûts des ressources Azure.
Comment Azure gère-t-il la haute disponibilité ?
Ce sont des modèles qui assurent une haute disponibilité et tolèrent les pannes en utilisant des paires de régions et zones de disponibilité.
Qu'est-ce qu'Azure IoT Hub ?
C'est une plateforme gérée permettant des communications bidirectionnelles entre appareils IoT et applications.
À quoi sert la protection DDoS en Azure ?
Elle protège les ressources réseau Azure des attaques DDoS en fournissant des capacités de mitigation avancées.
Comment Azure assure-t-il la sécurité et la conformité ?
La sécurité d’Azure est assurée par des niveaux de sécurité multicouches et les certifications de conformité.
Que permet de faire le portail Azure ?
Il fournit une interface graphique pour gérer les ressources Azure et suivre l'utilisation des services.
Quels sont les services d'identité principaux d'Azure AD ?
Cela inclut l'authentification unique, l'accès conditionnel et l'authentification multi-facteurs.

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Untertitel

Automatisches Blättern:

00:00:01
if the azure fundamentals exam is your
00:00:02
first azure certification it can be a
00:00:04
bit intimidating and difficult to dial
00:00:07
in your focus as you prepare
00:00:09
so if you want to get ready for az900
00:00:11
without wasting time
00:00:12
and money this is the place and in this
00:00:15
exam cram course i'm going to optimize
00:00:17
your prep time by touching on each item
00:00:19
in the skills measured document
00:00:20
and by sharing unique characteristics of
00:00:23
the azure concepts and services
00:00:25
that will help you more effectively pick
00:00:27
the right answer on exam day
00:00:29
if you stick around to the end of the
00:00:30
session i have another surprise
00:00:32
to help you prepare
00:00:34
[Music]
00:00:41
the azure fundamentals exam is comprised
00:00:43
of six
00:00:44
areas of knowledge called objective
00:00:46
domains all of which we'll cover in this
00:00:47
course
00:00:48
so let's take just a few seconds to
00:00:50
touch on those and then we'll get right
00:00:52
into module one
00:00:53
domain one is cloud concepts which will
00:00:56
test your understanding
00:00:58
of a number of cloud terms and your
00:01:01
understanding of cloud computing models
00:01:03
followed by core azure services this is
00:01:06
really going to focus on some
00:01:07
foundational components of the azure
00:01:09
platform
00:01:10
followed by core solutions and
00:01:12
management tools which will drill down
00:01:13
into the services
00:01:15
and tools within azure followed by
00:01:17
security and module 4
00:01:19
talking about general security and
00:01:23
network security features module 5 is
00:01:26
going to drill down on identity and
00:01:27
governance which are more technical
00:01:29
topics as well as privacy and compliance
00:01:31
which
00:01:32
in this case will be less technical and
00:01:35
the final domain is cost management and
00:01:39
service level agreements and since this
00:01:40
is a fundamentals
00:01:42
exam you want to make sure you're
00:01:44
focused on the right technical level so
00:01:46
you'll notice
00:01:47
that the verb in each of these domains
00:01:51
is the word describe so when we see
00:01:55
described there that tells us that we
00:01:56
need to be able to
00:01:58
to explain concepts and services and
00:02:00
identify the use cases where they apply
00:02:05
so i just want to cover off comparing
00:02:07
cloud
00:02:08
models and services with you and and
00:02:11
this is an area where i think you can
00:02:12
expect a fair bit of focus this is up in
00:02:14
in
00:02:15
objective domain one but let's uh let's
00:02:18
dig in here
00:02:25
so the services we're talking about here
00:02:27
are infrastructure platform and software
00:02:29
as a service so the
00:02:31
as a service offerings in the cloud and
00:02:34
then your cloud models
00:02:35
which are private hybrid and public now
00:02:38
all of these are going to
00:02:40
to be tied together in a discussion
00:02:42
around the shared
00:02:43
responsibility model which you're
00:02:45
expected to understand
00:02:46
so let's start by covering the shared
00:02:49
responsibility model and then we'll dig
00:02:51
into the cloud
00:02:52
models and services so when you're on
00:02:55
prem
00:02:57
you are the responsible party this is a
00:02:59
hundred percent yours you own the stack
00:03:01
you are the customer in blue the cloud
00:03:04
service provider is the csp that will
00:03:07
show up in gray now as we move into
00:03:09
cloud
00:03:10
with infrastructure as a service you see
00:03:12
the csp
00:03:13
microsoft in this case takes ownership
00:03:16
of some of the stacks so they're
00:03:17
providing you the underlying
00:03:19
networking storage server and
00:03:21
virtualization layers you're managing
00:03:23
your virtual machines they're patching
00:03:25
the applications you're running on them
00:03:27
when we move into platform as a service
00:03:30
as your web app for example or azure sql
00:03:33
you're managing
00:03:34
data and applications but microsoft is
00:03:36
providing
00:03:38
additional functions here so you're not
00:03:39
worried about operating systems or
00:03:41
runtime or a sql server instance
00:03:44
microsoft is managing a lot of that
00:03:46
middleware for you and then in the world
00:03:49
of software as a service you're
00:03:50
basically configuring
00:03:51
features you are a consumer of a service
00:03:54
that is owned lock stock and barrel by
00:03:57
microsoft and managed by them end to end
00:04:03
and what you notice here is that the csp
00:04:04
responsibility
00:04:06
is greater as we move to the right so
00:04:08
that's the
00:04:09
shared responsibility model so so in the
00:04:11
world of is just know that you're taking
00:04:13
care of a little bit more
00:04:15
than you would be in the world to pass
00:04:17
and then even less so in sas so you have
00:04:19
to think about that as an operational
00:04:20
consideration for sure
00:04:22
so let's break down the cloud model so
00:04:25
infrastructure as a service
00:04:29
microsoft provides you the the building
00:04:31
blocks network storage
00:04:32
compute virtualization they're
00:04:35
staffing the data center they're
00:04:37
managing the hardware
00:04:38
they're managing the people so really
00:04:41
you're using
00:04:43
the uh the stack that they give you
00:04:45
there
00:04:48
azure virtual machines is where this
00:04:50
factors if you if you come from the
00:04:51
world of amazon ec2
00:04:53
from google gcp compute engine if you
00:04:57
if you're coming to us to azure from one
00:04:59
of those other platforms
00:05:01
that's what you'd be dealing with so
00:05:03
let's talk about platform
00:05:04
as a service so in the the paths option
00:05:07
here
00:05:09
responsible for deployment and
00:05:11
management of your app so that's you
00:05:13
know in a web app scenario or an azure
00:05:15
azure um sql scenario you're dealing
00:05:18
with code and data
00:05:20
and microsoft is dealing with the
00:05:23
underlying
00:05:24
configuration hardware operating system
00:05:27
and
00:05:28
to a fair degree the provisioning
00:05:29
details under the hood
00:05:33
so azure sql api management azure app
00:05:36
service all
00:05:37
great examples of platform as a service
00:05:40
in the microsoft stack
00:05:42
so let's talk about software as a
00:05:44
service now
00:05:45
so in the world of sas you're really
00:05:48
configuring
00:05:49
features microsoft is giving you a
00:05:51
service that they
00:05:53
manage they're responsible for
00:05:54
management operation and availability
00:05:56
of the stack a great example there is
00:06:00
office 365. so in the the world of
00:06:03
third-party sas you might be familiar
00:06:04
with service servicenow or salesforce
00:06:06
just to give you
00:06:07
a basis of comparison okay so let's talk
00:06:11
through
00:06:11
cloud computing in terms of benefits and
00:06:14
then we'll get into the uh
00:06:15
the private hybrid and public cloud
00:06:17
models here and i'm going to use some of
00:06:19
that
00:06:20
word association to help you lock some
00:06:22
terminology in your mind as we move
00:06:24
forward through
00:06:26
some concepts here in the next couple of
00:06:27
tips so benefit to cloud computing
00:06:31
it's global it's secure it's scalable
00:06:33
it's cost effective
00:06:34
it doesn't require substantial capital
00:06:37
expenditure outlays
00:06:39
uh it typically lowers the skills bar
00:06:43
for us at least when we're dealing with
00:06:44
with public cloud as an example
00:06:48
so let's dig into public cloud so with
00:06:50
public cloud we're running everything on
00:06:51
our provider's hardware
00:06:53
and we expect scale and agility or built
00:06:57
in our ability to react
00:06:59
is greater there's a reduced need for
00:07:01
maintenance our skills
00:07:04
within our it department can be lower
00:07:06
and we can we can still
00:07:08
move into the cloud we can leverage our
00:07:12
cloud service providers knowledge
00:07:13
microsoft's knowledge and experience in
00:07:15
this
00:07:16
case so with private cloud
00:07:20
it's really just a cloud environment in
00:07:23
your own data center
00:07:24
so in terms of advantages you know if
00:07:26
you need legacy support or you need
00:07:28
control or you have specific
00:07:30
regulatory compliance needs the private
00:07:32
cloud is under your control so you
00:07:34
can you can manage
00:07:38
all of these scenarios you can
00:07:39
accommodate all of these scenarios where
00:07:41
public cloud
00:07:42
is not going to be so straightforward in
00:07:44
that respect because a cloud
00:07:45
public cloud is always up to date and
00:07:47
will have
00:07:49
limited concern for legacy scenarios and
00:07:52
may not
00:07:53
address all of your compliance scenarios
00:07:55
if they are
00:07:56
less less common now do bear in mind
00:08:01
that you will be tested on
00:08:04
on some of those compliant elements and
00:08:06
microsoft
00:08:08
azure has more certifications than any
00:08:12
other
00:08:12
cloud provider out there so you'll find
00:08:14
that microsoft can accommodate a lot of
00:08:16
compliance but
00:08:17
maybe not all of them so in a hybrid
00:08:20
cloud scenario
00:08:21
this combines the public scenario and
00:08:24
the private cloud scenario allowing
00:08:26
you to run your apps in the location
00:08:29
that
00:08:29
best suits so the real advantage here is
00:08:32
flexibility
00:08:33
if i have the need for legacy support or
00:08:36
some odd compliance scenario
00:08:39
i can go to my private cloud if i'm
00:08:42
prioritizing on scalability and agility
00:08:44
i can
00:08:45
go the public option so hybrid just
00:08:47
gives me the advantage
00:08:49
of choosing where i want to go and of
00:08:50
course with microsoft we have great
00:08:52
capability to
00:08:54
connect our private and public clouds in
00:08:56
that hybrid scenario we can use
00:08:59
azure ad connect we can use a site to
00:09:01
cite vpn
00:09:03
we can establish what we call the
00:09:05
synchronized identity model which is the
00:09:07
most
00:09:08
common identity model out there
00:09:11
so the microsoft azure is a great
00:09:14
supporter
00:09:15
of of hybrid cloud is your frontline
00:09:18
support struggling with too many
00:09:20
microsoft cloud portals
00:09:22
now they can manage office 365 users and
00:09:25
devices directly from microsoft teams
00:09:27
using simon the ai-powered chatbot for
00:09:31
the microsoft cloud
00:09:32
a link with more info in the video
00:09:35
description
00:09:42
so cloud concepts so there are some some
00:09:45
concepts that you're expected to be
00:09:47
familiar with and i want to call them
00:09:49
out here
00:09:50
and and again associate some terms to to
00:09:53
some concepts to help you lock these
00:09:55
into your mind uh more quickly as you're
00:09:58
preparing
00:09:59
for az900 so scalability is one that
00:10:02
comes up and scalability
00:10:04
generally for refers to growth the
00:10:06
ability of a system to handle growth if
00:10:09
that's users or work
00:10:13
elasticity may come up so
00:10:16
when a system is elastic
00:10:19
it can grow and shrink based on our app
00:10:22
demand so on premises
00:10:23
we typically have to provision for our
00:10:26
spike right for our peak so when we
00:10:28
provision a sharepoint farm on prem
00:10:30
our servers on the front end are sized
00:10:32
for our peak
00:10:34
that sort of thing is not necessary in
00:10:36
the cloud by and large because the cloud
00:10:38
is elastic and services that we
00:10:39
provision can generally grow and shrink
00:10:42
based on app demand and that's
00:10:44
particularly true when we look
00:10:46
in the past space
00:10:49
agility so this is the ability to react
00:10:53
quickly to changes in demand so
00:10:55
provisioning additional capacity
00:10:57
quickly without manual intervention and
00:11:00
the cloud also enables
00:11:01
agility in terms of going to market so
00:11:03
as environment or market conditions
00:11:06
change the the cloud makes us more agile
00:11:09
generally speaking because we can
00:11:10
respond
00:11:11
to those changes more quickly you know
00:11:13
than if we had to order additional
00:11:15
server infrastructure go
00:11:16
go get the budget approval for that
00:11:20
spin up a big project for all that
00:11:21
deployment
00:11:24
economies of scale bottom line when
00:11:27
you're working with a cloud provider
00:11:28
like
00:11:29
microsoft they have lower per unit cost
00:11:32
than you could achieve
00:11:34
on your own because they are operating
00:11:36
at a larger scale at a global scale so
00:11:38
they are achieving what we call
00:11:40
an economy of scale
00:11:44
capital expenditure you're generally
00:11:46
going to hear this simply called capex
00:11:48
and this is
00:11:48
spending of money on physical
00:11:51
infrastructure up front so so when
00:11:53
you're buying servers that's an example
00:11:54
of capex
00:11:56
when you're buying infrastructure for
00:11:57
your private cloud
00:12:00
operational expenditure typically just
00:12:02
called opex
00:12:04
is spending money on services or
00:12:06
products
00:12:07
now and being billed as you go
00:12:10
so that's really where the cloud comes
00:12:12
in so the cloud means we're we're
00:12:13
trading capex
00:12:15
for opex typically it doesn't mean that
00:12:17
we're necessarily spending less money in
00:12:19
all cases it simply means that the
00:12:21
nature of our spending is different
00:12:23
we're trading capex robex when we move
00:12:25
to cloud
00:12:28
and a consumption based model that's
00:12:30
simply paying for what we use when we
00:12:32
pay for a virtual machine we're paying
00:12:35
for increments of time as we run that
00:12:37
virtual machine
00:12:38
when we work with azure functions with
00:12:40
logic apps
00:12:41
we may be paying by execution when we're
00:12:44
working with
00:12:45
different flavors of azure storage we
00:12:47
might be paying by gigabyte
00:12:49
and and you know paying a different
00:12:51
price depending on how long we retain
00:12:53
that data so pay for what you use
00:12:57
typically based on per unit of time or
00:13:00
capacity so
00:13:01
minutes gigabytes executions etc
00:13:05
including but not limited to those
00:13:07
models
00:13:11
so for tip number five i've broken some
00:13:14
concepts
00:13:15
out separately because they all fall
00:13:17
into that area of high availability and
00:13:19
disaster recovery so i want to help you
00:13:22
kind of sort these out in terms of their
00:13:24
scope so the first term
00:13:26
is fault tolerance so this is the
00:13:28
ability of a system to handle
00:13:30
faults like a power failure a network
00:13:32
failure a hardware failure typically
00:13:34
when you're dealing with fault tolerance
00:13:35
you're talking about component level
00:13:37
failures
00:13:38
so that's the scope we're typically
00:13:40
dealing with
00:13:41
when it comes to high availability
00:13:43
that's the ability of a system to keep
00:13:45
that's the ability to keep services up
00:13:47
and running for long periods of time so
00:13:50
when we're thinking about high
00:13:51
availability we're often talking about
00:13:53
service level failures
00:13:55
often we're talking about within a
00:13:57
single data center we're not talking
00:13:59
about site failure but but we could be
00:14:01
we're talking about
00:14:02
service level failures though when we
00:14:04
think about it in the cloud
00:14:06
context and then disaster recovery
00:14:10
is our ability to recover from an event
00:14:12
which is taken down a cloud service so
00:14:15
that could be any
00:14:16
number of things like a
00:14:19
data center failure which you know in
00:14:21
the case of azure would be exceedingly
00:14:23
rare
00:14:24
in the case of virtual machines we can
00:14:26
use azure site recovery
00:14:27
to replicate those vms and bring them up
00:14:30
quickly
00:14:31
in the event that we lose those vms for
00:14:33
any reason
00:14:34
and if we had a service fail in a
00:14:36
particular region say azure sql
00:14:38
failed in a particular region if we're
00:14:40
replicating that database we can bring
00:14:41
it up in another region so so disaster
00:14:43
recovery comes in many
00:14:45
many shapes and sizes and forms in the
00:14:48
cloud
00:14:49
but because the cloud is global we don't
00:14:51
have to worry about
00:14:53
spinning up multiple remote data centers
00:14:56
to make sure that our service is always
00:14:57
available
00:14:59
in the event we have a localized outage
00:15:01
at a data center for example
00:15:04
in a traditional sense in in
00:15:08
you know on-premises compute in private
00:15:10
cloud we always
00:15:11
would think of disaster recovery as
00:15:14
recovery in the event of a site failure
00:15:16
but really in the cloud context this is
00:15:19
a service failure
00:15:20
or a site failure it's not not
00:15:22
exclusively a site
00:15:24
event
00:15:27
now we're going to move into the second
00:15:28
area of knowledge which is describing
00:15:30
core
00:15:30
azure services and there are two
00:15:32
sections to this objective domain the
00:15:35
first is
00:15:35
core architectural components and the
00:15:38
other
00:15:38
is core resources available in azure so
00:15:41
let's start with
00:15:43
architectural components you'll notice
00:15:45
that the verb here is described so it's
00:15:46
the same theme we talked about in terms
00:15:48
of technical depth
00:15:50
and we're going to look at regions and
00:15:51
region pairs availability zones resource
00:15:54
groups
00:15:55
subscriptions management groups and
00:15:57
azure
00:15:58
resource manager and all of these are
00:16:02
describe
00:16:02
the benefits and usage of i just
00:16:04
abbreviated for us there and then we'll
00:16:06
finish this section up with
00:16:08
explain azure resources
00:16:11
so in the area of core architecture
00:16:13
components let's start at the very top
00:16:14
and work our way
00:16:16
down in terms of scope so at the highest
00:16:19
level we have an azure geography which
00:16:20
is a discrete market that contains two
00:16:23
or more regions
00:16:24
that preserves our data residency and
00:16:27
compliance
00:16:28
boundaries and if i just look
00:16:31
at a map here geographies would be
00:16:34
laid out something like this so you've
00:16:36
got you know the us you have europe you
00:16:38
have uh
00:16:39
australia china
00:16:44
there's africa south america
00:16:48
and then within a geography of regions
00:16:51
and a region
00:16:52
is a set of data centers deployed within
00:16:54
a latency defined
00:16:56
perimeter and they're connected in a
00:16:59
dedicated regional low-latency network
00:17:01
so it's fast connectivity amongst this
00:17:03
set of data
00:17:04
centers so in a region like
00:17:08
azure us east for example you're going
00:17:11
to have
00:17:12
fast connectivity between a number of
00:17:16
data centers in a tight footprint
00:17:18
so multiple data centers small area so
00:17:21
the same would be true of east us-2
00:17:22
south central
00:17:23
central u.s west central etc
00:17:27
now i want to take just a minute and
00:17:29
look at geographies and regions together
00:17:31
with you
00:17:32
in context here so so when i look at a
00:17:34
geography like asia pacific for example
00:17:36
i can see the regions
00:17:37
contained in the asia-pacific geography
00:17:40
south america has two
00:17:42
data centers in brazil two data centers
00:17:45
in canada several more in the u.s
00:17:47
there's
00:17:48
europe with data centers in countries
00:17:50
throughout europe
00:17:51
uh followed by africa and the middle
00:17:54
east so pretty intuitive in that respect
00:17:57
now beneath regions we have the concept
00:18:00
of
00:18:00
region pairs so this is a relationship
00:18:03
between two
00:18:04
azure regions within the same geographic
00:18:06
region
00:18:07
for disaster recovery purposes so the
00:18:09
region pairs will be specific to the
00:18:11
geography
00:18:13
so let's take the u.s for example the
00:18:16
east
00:18:16
u.s region has a region pair
00:18:20
and its partner is the west u.s so
00:18:24
the region pairs are chosen by microsoft
00:18:26
you don't get to choose these these are
00:18:28
pre-defined and wherever possible they
00:18:30
are selected
00:18:32
as a pair with more than 300 miles
00:18:35
between them
00:18:37
there are a small number of cases where
00:18:39
that's not possible but generally
00:18:40
speaking you're going to have
00:18:42
300 miles between your your regions
00:18:45
in the region pair and your azure
00:18:48
services that are highly available that
00:18:50
you also configure
00:18:51
highly available will have failover
00:18:54
protocols that kick in
00:18:56
when when a region fails but a region
00:18:58
pair is designed to address
00:19:00
a failure of a given region
00:19:04
so then we have availability zones so
00:19:06
availability zones are unique
00:19:09
physical locations within a region with
00:19:12
independent power network and cooling so
00:19:14
within a region is the key there right
00:19:17
so this is
00:19:18
uh the scope of availability zones is to
00:19:20
deal with failures within
00:19:22
an azure region it's comprised of one or
00:19:25
more data centers so
00:19:26
so us east as a region for example will
00:19:29
have
00:19:30
multiple data centers in a a footprint
00:19:33
and it adds tolerance to data center
00:19:36
failures via redundancy and isolation so
00:19:39
just looking at
00:19:40
an example here i have a web farm with a
00:19:42
sql backend
00:19:43
and i would have availability zones
00:19:47
for each of my front ends and back in
00:19:49
there so i can
00:19:51
tolerate a failure within a data center
00:19:55
and my load balancer is going to be zone
00:19:57
redundant which is a special phrase you
00:19:59
will want to just park in the back of
00:20:01
your mind and zone redundant comes up in
00:20:03
special cases like with the load
00:20:05
balancer so
00:20:05
a single ip address in a load balancer
00:20:07
scenario here can survive a failure
00:20:10
across any of those availability zones
00:20:13
so the idea with zone redundancy is that
00:20:15
a single front-end ip address would
00:20:17
survive
00:20:19
a zone failure now we'll look at some
00:20:21
logical architecture components
00:20:25
so let's dive in here so we have at the
00:20:27
highest level management groups
00:20:29
then subscriptions resource groups and
00:20:32
resources so let's take a look at how
00:20:34
these fit
00:20:36
together
00:20:40
so at the the highest level in these
00:20:43
architectural components we have the
00:20:44
management group
00:20:45
which can contain one or more
00:20:48
subscriptions
00:20:51
we then have resource groups and a
00:20:53
resource
00:20:54
group belongs to exactly one
00:20:56
subscription a subscription will
00:20:57
typically contain multiple resource
00:20:59
groups
00:21:00
and then the resources themselves
00:21:04
so starting with management groups
00:21:05
management groups
00:21:07
provide a level of scope above a
00:21:09
subscription so we can bring those
00:21:11
subscriptions together
00:21:13
into a single boundary for management so
00:21:16
each directory
00:21:17
is given a single top level management
00:21:19
group called
00:21:21
the root so all of your subscriptions
00:21:23
belong to that root
00:21:24
by default
00:21:28
however we can create management groups
00:21:30
that contain
00:21:32
a subset of our subscriptions as we like
00:21:34
so we can use that as a boundary for
00:21:36
management
00:21:38
then we have subscriptions so a
00:21:40
subscription is a logical container used
00:21:42
to provision resources in azure
00:21:45
and why would i create multiple
00:21:46
subscriptions well there are a few
00:21:48
reasons
00:21:49
so when subscription limits are reached
00:21:51
and every sub
00:21:52
every service in the subscription has
00:21:55
certain limits and sometimes those
00:21:57
limits are set
00:21:58
beneath the maximum and we can increase
00:22:00
those but
00:22:01
at some level you're going to hit a
00:22:03
subscription level limit so
00:22:04
if you have a a level of very high scale
00:22:07
you may need multiple
00:22:08
subscriptions to achieve your scale to
00:22:11
use different payment methods
00:22:13
you know maybe i have one group that
00:22:14
wants to pay with a credit card another
00:22:17
that pays in a different way or maybe
00:22:20
we're doing it
00:22:20
so we can isolate resources between
00:22:23
departments and projects and sometimes
00:22:25
these last two go hand in hand we want
00:22:27
to isolate
00:22:28
our resources between departments and
00:22:30
projects uh from a security
00:22:32
perspective from a scale perspective but
00:22:34
also from
00:22:36
a cost tracking perspective so so
00:22:38
payment and isolation can go
00:22:40
hand in hand in that respect now a
00:22:43
resource
00:22:44
group is a container that holds the
00:22:46
resources that are related
00:22:48
to an azure solution so a great example
00:22:50
of this
00:22:51
is an azure virtual machine we can use a
00:22:53
resource group to group the resources
00:22:55
that share a common
00:22:56
resource life cycle and
00:23:00
the resources themselves that can be any
00:23:03
entity that's managed by azure like a
00:23:05
virtual machine or a virtual network or
00:23:08
a storage account so just to cement
00:23:12
that concept i want to have a look
00:23:15
at a resource group and the resources it
00:23:17
contains with you now
00:23:20
i'm going to switch over to the azure
00:23:22
portal and i'm at portal.azure.com
00:23:24
if i click on resource groups it's going
00:23:26
to bring me to this interface and i have
00:23:29
pre uh searched pre-filtered down to the
00:23:32
resource group i'd like to show you so i
00:23:33
mentioned a resource group as a
00:23:34
container that contains related
00:23:36
resources that share a common life cycle
00:23:38
so in this case
00:23:39
i have a resource group that contains a
00:23:41
virtual machine
00:23:43
and here i see all of the resources
00:23:45
related
00:23:46
to that virtual machine i see the public
00:23:49
i p address a network security group an
00:23:51
interface a disk a virtual network
00:23:55
so all of these elements are related to
00:23:57
my virtual machine and when this virtual
00:23:59
machine's life cycle comes to an end
00:24:01
i would typically want to delete all of
00:24:04
those related resources as a unit so i
00:24:06
can simply delete
00:24:08
the resource group and all of these
00:24:10
resources will be deleted as
00:24:12
a result it also
00:24:16
bears mentioning that i could use this
00:24:17
resource group as a boundary for
00:24:19
assigning permissions you see access
00:24:21
control here i could apply
00:24:22
permissions at the resource group level
00:24:24
to give certain
00:24:25
people or groups within my organization
00:24:28
permissions
00:24:29
to that resource
00:24:33
so i want to visualize this last set of
00:24:35
architecture components a different way
00:24:37
and and make a few additional points and
00:24:39
recap what we've covered here so
00:24:40
starting at that management group that's
00:24:43
that highest level logical container we
00:24:45
can use management groups to aggregate
00:24:47
policy and initiative assignments an
00:24:49
initiative as a group of policies we're
00:24:51
going to talk about
00:24:52
policies and initiatives later in the
00:24:54
governance section
00:24:56
it can contain multiple subscriptions
00:24:58
and
00:24:59
all new subscriptions will be placed
00:25:01
under the root management group by
00:25:02
default that would contain
00:25:04
all subscriptions but you can create a
00:25:06
management group that contains
00:25:07
the subset of subscriptions you would
00:25:09
like to
00:25:10
manage via policy as a unit
00:25:14
so then beneath our management group we
00:25:16
have subscriptions
00:25:19
that's a unit of of management billing
00:25:21
and scale so a unit of management we get
00:25:23
but it's also a unit of billing and
00:25:25
scale because our subscription has
00:25:27
scalability limits this serves as
00:25:30
a management boundary for assigning
00:25:32
policy you know governance and isolation
00:25:35
as well
00:25:35
so we get a degree of isolation here we
00:25:37
can apply
00:25:38
policies at this level so so it's
00:25:40
another management boundary
00:25:42
and our subscriptions will contain one
00:25:46
or more
00:25:47
resource groups so the resource group is
00:25:49
that container
00:25:50
that holds resources with a common life
00:25:52
cycle as we saw in
00:25:53
the demo earlier but that common life
00:25:57
cycle is the key there it
00:25:58
also makes it easy for us to delete
00:26:01
items
00:26:02
to delete resources as a unit when the
00:26:04
life cycle comes to an end and then of
00:26:05
course
00:26:06
the resources are contained within a
00:26:09
resource group and to be crystal clear
00:26:11
there
00:26:12
resources can be a member of exactly one
00:26:14
resource group and a resource group can
00:26:16
be a member of exactly
00:26:18
one subscription so the resource group
00:26:20
is contained within a specific
00:26:21
subscription
00:26:22
and the resources contained within a
00:26:24
specific resource
00:26:26
group now we're going to dive into the
00:26:31
second half
00:26:32
of objective domain 2 and this is
00:26:34
describing some of the core resources
00:26:36
available in azure so this
00:26:38
section is going to focus on compute
00:26:39
network storage
00:26:41
and database far from the only services
00:26:43
we'll cover
00:26:44
but there's quite a lot of material in
00:26:46
this particular
00:26:48
subsection so let's just get into it
00:26:50
we'll start
00:26:51
with compute so we'll talk about virtual
00:26:53
machines azure app services
00:26:55
container instances kubernetes
00:26:58
particularly in particular the azure
00:26:59
kubernetes service and windows virtual
00:27:01
desktop
00:27:02
and then we'll look at networks
00:27:07
vpn peering and express route
00:27:10
so basically compute and network so
00:27:12
let's just get right into it
00:27:14
so on the compute side we have azure vms
00:27:17
we have
00:27:18
app service where we'd run web services
00:27:21
we have azure container instance
00:27:23
azure kubernetes services and windows
00:27:26
virtual desktop so we really want to
00:27:29
break these down in such a way that you
00:27:30
know a bit about
00:27:31
each service but you can spot where it
00:27:34
fits into a use case on the exam
00:27:37
so let's start with azure vms one of the
00:27:39
basics here so
00:27:40
this is server virtualization this is
00:27:42
spinning up compute on demand without
00:27:44
the need for a hardware purchase we
00:27:46
don't have to buy
00:27:47
a hyper-v host we can spin up a virtual
00:27:50
machine quickly and easily
00:27:52
so app service is an http based service
00:27:55
for hosting
00:27:56
web applications so think hosting
00:27:59
websites or web apps rest apis mobile
00:28:01
backend
00:28:02
and of course since it's http based
00:28:05
you'd secure that with
00:28:07
with tls transport layer security or ssl
00:28:09
using a certificate
00:28:12
as your container instance so this is
00:28:14
running docker containers on demand
00:28:17
in a managed serverless environment
00:28:19
you're quite literally just spinning up
00:28:21
a container and and you don't worry
00:28:23
about anything else now
00:28:24
the catch here is with aci with azure
00:28:26
container instance
00:28:28
it's a solution for any scenario where
00:28:29
you need to run an isolated container
00:28:32
without orchestration which means we
00:28:34
don't have the benefit of a kubernetes
00:28:36
cluster
00:28:38
in this case and you'll see
00:28:41
aci come up in you know truly an
00:28:43
isolated scenario where you need to run
00:28:46
where you need to run a container
00:28:48
containerized application without
00:28:49
orchestration but it can also
00:28:51
function as a burst mechanism for an
00:28:54
azure kubernetes
00:28:55
uh service instance so so you could
00:28:58
burst out into aci but but generally
00:29:00
speaking what you want to focus on here
00:29:01
isolated containers without
00:29:03
orchestration right there's no
00:29:05
orchestrator here like you have
00:29:07
in a kubernetes cluster so azure
00:29:10
kubernetes service is a
00:29:11
hosted kubernetes service where azure
00:29:14
handles the critical tasks like health
00:29:16
monitoring and maintenance
00:29:17
for you the cluster itself is managed
00:29:20
for you and that being said aks is free
00:29:23
you basically pay for the agent nodes
00:29:25
you pay for the virtual machines where
00:29:27
the workloads run within your cluster
00:29:30
not for what they call the masters or
00:29:32
managers
00:29:34
effectively
00:29:37
you know that piece is managed for you
00:29:41
windows virtual desktop is a desktop and
00:29:44
app virtualization service that runs in
00:29:46
azure so
00:29:47
so it pros and managed service providers
00:29:49
can spin up
00:29:50
windows 10 virtual desktops in azure at
00:29:54
high scale this has been a really
00:29:55
popular solution
00:29:57
in the work from home revolution
00:30:02
and in particular what's been brought on
00:30:04
in 2020
00:30:05
with uh with with pandemic work from
00:30:09
home
00:30:09
requirements really
00:30:13
so now we're going to talk about network
00:30:16
services in azure so we'll talk about
00:30:17
virtual networks
00:30:18
about vpn gateways about vpn
00:30:22
in particular v-net peering and i'll
00:30:25
share a little secret as to why
00:30:27
v-net peering is actually necessary and
00:30:30
we'll cover
00:30:30
express route and how you can spot
00:30:34
questions where express route is the
00:30:36
answer on the exam so let's talk about
00:30:37
virtual networks so this is a logical
00:30:39
representation of your
00:30:41
you know ip-based network in azure uh
00:30:44
you'll often see a virtual network
00:30:46
referred to simply as a v-net
00:30:49
two two ways to reference the same thing
00:30:51
a v-net contains
00:30:53
one or more ip subnets subnets are where
00:30:57
your where your virtual machines and
00:30:58
your other
00:30:59
uh components are actually connected
00:31:01
within that virtual network so i can
00:31:03
have one
00:31:04
subnet or multiple subnets
00:31:07
v-nets provide logical isolation and
00:31:10
azure dedicated
00:31:11
to your subscription so it's your
00:31:13
network
00:31:14
think of it as a dedicated private
00:31:16
cloud-only network
00:31:18
we can connect it to our on-premises
00:31:20
network
00:31:21
by configuring a site to site vpn for
00:31:23
example so i can extend
00:31:25
the network in my data center to azure
00:31:27
and i can route traffic to and from
00:31:29
my azure subscription across that site
00:31:31
to site vpn
00:31:34
this enables hybrid cloud scenarios
00:31:38
in fact one other thing you want to
00:31:41
remember are vms
00:31:42
in different virtual networks cannot
00:31:46
communicate by default
00:31:49
so v-nets within the same subnet can
00:31:52
communicate but when
00:31:53
the the virtual machines are in
00:31:55
different v-nets in different virtual
00:31:57
networks they cannot
00:31:58
communicate so a vpn gateway
00:32:02
is what sends encrypted traffic between
00:32:05
an azure v-net and an on-premises
00:32:07
location
00:32:08
over
00:32:11
the internet this is a core component of
00:32:16
hybrid cloud we're connecting our
00:32:17
on-premises network to the internet
00:32:19
uh a site-to-site vpn the traffic on a
00:32:22
site-to-site vpn
00:32:23
actually traverses the internet that's
00:32:25
important to know it's it's encrypted of
00:32:27
course but it's
00:32:28
traveling across the internet now v-net
00:32:31
peering
00:32:33
is how we can connect two virtual
00:32:36
networks two or more virtual networks
00:32:38
really seamlessly in azure so that would
00:32:40
allow us to connect
00:32:42
our virtual network so our virtual
00:32:44
machines can
00:32:45
communicate so we can direct traffic
00:32:48
between those so two networks then
00:32:49
function as
00:32:50
one in terms of connectivity gives us a
00:32:53
way to
00:32:54
to route traffic in complex environments
00:32:58
express route is a solution that extends
00:33:02
our on-premises networks into azure over
00:33:05
a private connection
00:33:07
with the help of a connectivity provider
00:33:08
so a a telecom
00:33:10
provider so express route
00:33:14
is the same concept as site-to-site vpn
00:33:18
in that it connects azure to our
00:33:20
on-premises
00:33:21
you know data center network however the
00:33:24
traffic does
00:33:25
not traverse the internet therefore it
00:33:27
is generally speaking faster
00:33:29
it is therefore uh generally speaking
00:33:32
considered
00:33:33
more secure
00:33:36
that is not to imply that site-to-site
00:33:38
vpn is not secure i'm simply saying
00:33:41
express route because it does not
00:33:42
traverse the internet because it is a
00:33:44
private connection
00:33:45
is more secure so if you see questions
00:33:48
on the exam that talk about connecting
00:33:50
your data center to azure
00:33:52
and security and eliminating latency are
00:33:55
high priorities
00:33:57
express route is going to be a great way
00:33:58
to do that bear in mind that
00:34:00
site-to-site vpn is generally speaking
00:34:02
going to be less expensive than express
00:34:04
route
00:34:05
which probably doesn't surprise you
00:34:08
and while it's not super important i
00:34:09
want to take a quick look with you at
00:34:11
a v-net and a subnet in an azure
00:34:14
subscription here so i'll just
00:34:16
click on my resource group that contains
00:34:19
the virtual machine
00:34:20
i showed you earlier and i have a v-net
00:34:22
in here so here's a virtual network
00:34:24
you'll see that it says the type is
00:34:26
virtual network and when i click on that
00:34:27
virtual network
00:34:29
i can see in here connected devices so i
00:34:32
can see the virtual machine
00:34:33
that's connected right by its network
00:34:35
interface and there's its ip address
00:34:38
i can see the subnet that was created
00:34:40
and in fact
00:34:41
when you create a virtual network the
00:34:43
the subnet you create is going to be
00:34:46
named default unless you give it another
00:34:48
name but i can then click this and
00:34:50
create more subnet so i can have
00:34:53
multiple subnets within my v-net
00:34:55
but within that virtual network
00:34:59
my virtual machines on my subnets there
00:35:01
can communicate now when i put virtual
00:35:03
machines or anything else
00:35:05
in different virtual networks they
00:35:06
cannot communicate by default that's
00:35:08
where v-net peering comes in real handy
00:35:12
continuing on the second objective
00:35:14
domain we're still talking core azure
00:35:16
services we're going to move into
00:35:17
discussing storage in azure
00:35:20
as well as the many database offerings
00:35:23
in azure so starting with storage let's
00:35:26
first look
00:35:27
at blob storage disk storage
00:35:31
file storage and storage
00:35:34
tiers so blob storage
00:35:37
blob storage is optimized for storing
00:35:39
massive amounts of unstructured data and
00:35:41
unstructured data is a fancy way of
00:35:43
saying
00:35:44
not a database you might use blob
00:35:46
storage to store
00:35:48
image data or video data that's
00:35:50
accessible via your website or your
00:35:53
mobile app
00:35:54
or for log files
00:35:57
so azure file storage are fully managed
00:35:59
file shares
00:36:00
that are accessible in azure via smb or
00:36:03
nfs so smb is server message block
00:36:06
widely used in the windows world and
00:36:09
nfs's network file system
00:36:11
commonly used on the linux platform
00:36:15
disk storage refers to managed disks
00:36:18
which are block level volumes managed by
00:36:20
azure and used with azure vms
00:36:22
they're just like physical disks that
00:36:24
you would use in servers on premises
00:36:26
they're just virtualized
00:36:28
and really you just configure a bit of
00:36:31
information about the type pick a size
00:36:33
and provision
00:36:34
so so simplified storage really
00:36:38
thank you cloud and storage tier so
00:36:41
azure includes hot cool and archive
00:36:45
access tiers to store blob object data
00:36:48
in a
00:36:49
cost effective way so
00:36:52
the hot data is data that's frequently
00:36:54
accessed and then your infrequently
00:36:56
accessed data is going to be in the cool
00:36:58
tier
00:36:59
for at least 30 days and then your
00:37:02
archived tier
00:37:03
is stored data that's
00:37:07
rarely accessed and it's going to be the
00:37:09
highest latency to get
00:37:11
uh that data back for uh for visibility
00:37:15
so retrieving
00:37:16
that archive data is not going to be an
00:37:18
instant operation but storing
00:37:20
data in the archived tier is going to be
00:37:22
very inexpensive and you can use
00:37:24
lifecycle management policies to
00:37:26
automate
00:37:27
uh how the data shows up in these tiers
00:37:30
i don't expect that you're going to see
00:37:32
anything about lifecycle management
00:37:33
policies on the exam but i wanted to
00:37:35
throw that out there
00:37:36
because that is a pretty common question
00:37:38
i hear can i automate
00:37:39
which tier the the data shows up in and
00:37:42
the
00:37:43
short answer is yes so that's not it
00:37:46
when it comes to
00:37:47
storage in azure so we also have table
00:37:50
storage
00:37:52
and queue storage that are worth
00:37:53
discussing for sure
00:37:55
so table storage allows us to store
00:37:58
structured nosql data in azure
00:38:01
including a schemas key
00:38:04
attribute store so i see table storage
00:38:06
used in a case where
00:38:08
one might normally use a sql database
00:38:11
but
00:38:12
the relational aspect of sql isn't
00:38:15
required where you just need
00:38:16
a table of of you know keys and values
00:38:22
and what's great about table storage in
00:38:24
that respect is it's it's
00:38:25
relatively cheap and it's fast and easy
00:38:28
to manage at that point
00:38:31
so let's talk about queue storage so
00:38:34
this is a service restoring large
00:38:36
numbers of
00:38:37
messages that are accessible from
00:38:38
anywhere via authenticated
00:38:41
http or https calls
00:38:47
and because q storage will scale way
00:38:49
into the millions of messages
00:38:50
this this shows up in in applications
00:38:53
many times so
00:38:55
cq storage talked about a lot in an
00:38:57
application development context
00:39:01
but the key word here is messages
00:39:05
so you might wonder how how much like
00:39:08
you know on-premises physical disks are
00:39:11
disks in azure so i'm just going to flip
00:39:13
over to
00:39:14
my portal here quickly and i'll click on
00:39:17
that
00:39:18
resource group we looked at earlier in
00:39:20
the course and i'm looking at the
00:39:21
properties of my virtual machine here
00:39:22
and i'm going to click on its
00:39:24
disk so just as you would in a
00:39:27
virtualization
00:39:28
environment on-premises if you needed to
00:39:32
examine disk performance you'll see that
00:39:34
i can
00:39:35
look at disk operations here so
00:39:38
immediately i have some metrics that are
00:39:40
available to me
00:39:42
so i can assess my disk performance and
00:39:45
if i find
00:39:46
that my disk isn't performing at the
00:39:48
level i need
00:39:49
i can come in here and resize my disk
00:39:58
so now let's transition to databases
00:40:01
so quite a few options here we'll talk
00:40:02
about cosmos db
00:40:04
my sequel postgresql
00:40:09
microsoft sql and sql managed
00:40:12
instance so i'll point out
00:40:16
some differentiating factors of each of
00:40:18
these offerings where they fit so you
00:40:20
know how to pick them out
00:40:22
in the questions on the exam
00:40:27
so let's start with cosmos db so cosmos
00:40:30
db is a fully managed
00:40:32
nosql database designed for modern
00:40:36
application development it features
00:40:39
ultra low response latency anywhere in
00:40:43
the world it has
00:40:43
apis for several popular languages and
00:40:46
database platforms so essentially it can
00:40:49
function
00:40:50
as many other types of databases like
00:40:53
uh sql mongodb gremlin
00:40:57
cassandra spark i've used cosmos db for
00:41:00
00:41:01
db myself using the api for so my
00:41:04
mongodb
00:41:05
queries can work against cosmos db and
00:41:07
because it's a global
00:41:09
platform the ultra low response latency
00:41:13
those are those are keywords you want to
00:41:15
remember for the exam and know
00:41:16
that really cosmos features fast
00:41:20
global access and data convergence in
00:41:22
fact when you set up
00:41:23
cosmos you can figure how it's going to
00:41:26
behave and and where it's going to be
00:41:27
available so setting up cosmos
00:41:30
in a global configuration is actually
00:41:33
not that difficult
00:41:35
so microsoft sql so azure sql this is a
00:41:39
fully managed pass database engine that
00:41:42
handles most of the manage functions
00:41:44
management functions for you like
00:41:46
upgrading patching backups
00:41:48
and monitoring
00:41:51
in fact i'll show you an azure sql
00:41:53
instance in just a moment
00:41:55
we'll have a quick look so continuing
00:41:58
here
00:41:59
postgresql very similar it's a
00:42:01
relational database service
00:42:03
in the in the cloud based on postgresql
00:42:06
community edition
00:42:07
uh when you look at it in the azure
00:42:09
portal it is a paths database offering
00:42:12
it looks very much like
00:42:14
microsoft sql in in the azure sql
00:42:16
offering it's it's
00:42:18
simply a different platform under the
00:42:20
hood
00:42:21
um mysql uh same thing based on my sql
00:42:26
mysql
00:42:27
community edition another paths
00:42:30
relational database service
00:42:32
and many of those functions handled in
00:42:34
azure sql
00:42:35
also handled in my sequel so and
00:42:38
in fact when you look at these services
00:42:40
they are three distinct services but
00:42:42
they look
00:42:43
very similar in the azure portal and in
00:42:47
terms of their features
00:42:51
in fact let's just pop over to the azure
00:42:52
portal right quick and have a quick look
00:42:54
at an azure
00:42:56
sql instance so you'll notice here that
00:42:58
you see the little sql icon it says sql
00:43:00
server this is my
00:43:02
azure sql server and if i click on that
00:43:05
server
00:43:06
i can come in here and see my sql
00:43:09
databases and so there's my database
00:43:14
and as i mentioned many of the functions
00:43:16
the management functions are handled for
00:43:18
you in this service so if i go to manage
00:43:20
backups this is a great example because
00:43:22
you'll see this across all three of
00:43:23
those services across
00:43:25
the microsoft azure sql and my sql and
00:43:28
the postgresql offering is
00:43:31
that you have a backup capability and
00:43:32
you can configure retention here
00:43:35
and you'll notice here i can go
00:43:38
and i can do point in time restores uh
00:43:41
all the way up to 35 days i can
00:43:44
configure
00:43:45
my retention so
00:43:48
similar capabilities across my sequel
00:43:50
and post post sql
00:43:53
sql as well
00:43:57
so closing out our database discussion
00:44:00
we have sql managed instance so this is
00:44:02
a cloud database service that combines
00:44:04
the broadest sql service database engine
00:44:08
compatibility with all the benefits of
00:44:12
a platform as a service offering but
00:44:14
broadest compatibility
00:44:16
is the key here so you'll see this come
00:44:18
up pretty typically in situations where
00:44:20
we want to migrate an
00:44:21
on-premises db to the cloud and
00:44:24
compatibility is key because the
00:44:26
database
00:44:27
and and perhaps the application aren't
00:44:29
quite ready
00:44:30
for the cloud yet so sql managed
00:44:32
instance solves for that problem
00:44:35
and closing out this section the azure
00:44:38
marketplace so this is a catalog
00:44:40
of more than 17 000
00:44:43
certified apps and services as of today
00:44:45
that's growing no doubt
00:44:47
essentially you can seamlessly deploy
00:44:50
applications from the and services from
00:44:52
the catalog it simplifies billing
00:44:54
because you can have
00:44:55
a single bill so so remember in terms of
00:44:58
benefits simplifying billing single bill
00:45:01
for all your microsoft and third party
00:45:04
offerings in fact if i just switch over
00:45:06
to the azure portal
00:45:09
i'll just switch over to the azure
00:45:11
portal and you'll see there's a
00:45:12
marketplace icon there
00:45:14
and that opens up the marketplace where
00:45:16
i see
00:45:17
a list of many offers and
00:45:20
i can search here for whatever it is
00:45:24
that i would like to purchase i can
00:45:26
search by keyword or i can search down
00:45:28
for specific
00:45:30
solutions so as we move into objective
00:45:33
domain three on az 900 i want to point
00:45:36
out
00:45:36
an important fact here and that's uh in
00:45:38
the skills measured document for
00:45:40
every azure certification exam i have
00:45:42
ever looked at you're going to find
00:45:44
right
00:45:44
up near the the top under skills
00:45:47
measured the following
00:45:48
statement this list is not definitive or
00:45:52
exhaustive meaning that there are
00:45:54
elements related to the skills measured
00:45:57
that may not be called out explicitly on
00:46:00
the list of skills measured that may
00:46:02
still appear on the exam that will
00:46:03
become
00:46:04
very apparent in a couple of key areas
00:46:07
in
00:46:07
objective domain three where i will call
00:46:10
out some elements i think you may well
00:46:11
see on the exam
00:46:12
in spite of the fact that they are not
00:46:14
called out explicitly in the skills
00:46:16
measured
00:46:17
in part because there are some
00:46:19
components i know to be important
00:46:21
commonly used and in part because i have
00:46:24
seen those components called out
00:46:26
explicitly
00:46:26
in previous versions of az 900
00:46:30
we're not going to waste a lot of time
00:46:31
on it but they'll be called out so you
00:46:33
have awareness going into that exam so
00:46:37
objective domain 3 is divided into two
00:46:39
parts there is describe
00:46:41
core solutions available in azure and
00:46:43
describe
00:46:44
azure management tools
00:46:47
so core solutions we'll touch on the
00:46:50
following themes where you'll need to
00:46:52
describe the benefits and usage
00:46:54
of the core solutions iot
00:46:58
synapse analytics hdinsight and azure
00:47:00
data bricks are in the data warehouse
00:47:03
category and then in machine learning
00:47:06
and ai
00:47:07
followed by serverless computing
00:47:09
solutions that include azure functions
00:47:11
and logic apps
00:47:12
but are not limited to those two
00:47:15
components
00:47:16
and in the theme of devops we'll talk
00:47:18
about azure devops github
00:47:21
github actions and azure devtest
00:47:24
lab so let's get right into it we'll
00:47:26
talk about iot first and let's look at
00:47:28
iot hub
00:47:30
so iot hub is a central message hub for
00:47:32
bi-directional communication
00:47:34
between your iot app and the devices it
00:47:37
manages
00:47:38
so bi-directional is a key element here
00:47:42
sometimes iot hub is compared to azure
00:47:46
event hub and a key difference between
00:47:48
iot hub and event hub is that the iot
00:47:52
hub
00:47:52
is bi-directional and in fact the event
00:47:55
hub
00:47:56
was used in iot scenarios before iot hub
00:47:59
was released but that's one of the key
00:48:03
capabilities that iot hub brought to the
00:48:06
party so remember that
00:48:07
when you see questions around iot hub if
00:48:10
you see bi-directional show up there
00:48:12
anywhere
00:48:13
iot hub is bidirectional event hub is
00:48:15
not
00:48:16
iot central an iot application
00:48:20
platform that simplifies the creation
00:48:23
of iot solutions and helps to reduce
00:48:26
the burden and cost of iot management
00:48:29
operations and development
00:48:32
this really points to the the core
00:48:35
mission of iot
00:48:37
central so iot central was developed to
00:48:40
simplify the iot management process to
00:48:44
reduce
00:48:45
the the burden and the knowledge level
00:48:47
required for organizations trying to
00:48:49
manage iot
00:48:50
in fact iot central is a fully managed
00:48:54
sas solution so it's really lowering the
00:48:57
bar by bringing
00:48:58
some native management and monitoring
00:49:01
functionality for your iot devices so
00:49:04
those will be key elements you want to
00:49:05
watch for in questions related to iot
00:49:08
when you're trying to
00:49:09
find the right solution so azure sphere
00:49:13
is a secure high level application
00:49:16
platform
00:49:17
created by microsoft with built-in
00:49:19
communication and security features for
00:49:21
internet connected devices
00:49:23
essentially it's a linux based operating
00:49:26
system
00:49:26
and a cloud-based security service that
00:49:29
provides
00:49:30
continuous security it was actually
00:49:33
created by microsoft
00:49:35
to run on an azure sphere certified chip
00:49:37
and to connect
00:49:39
with the azure sphere security service
00:49:42
so definitely a purpose purpose-built
00:49:44
operating system so
00:49:49
let's talk about data warehouse if you
00:49:52
see data lake
00:49:53
synapse analytics hd insight or
00:49:56
data bricks mentioned
00:50:00
that all refers to something related to
00:50:03
data warehouse now data lake didn't show
00:50:05
up
00:50:06
explicitly in that list i have seen data
00:50:08
lake on
00:50:09
az 900 exam descriptions previously
00:50:12
so just keep an eye out for that so any
00:50:14
of these four elements
00:50:16
really would fall into common data
00:50:20
warehouse scenarios so let's break these
00:50:22
down
00:50:23
and talk about how each fits so data
00:50:26
lake the one
00:50:27
not mentioned this is a technology that
00:50:29
enables big data analytics
00:50:31
and artificial intelligence it provides
00:50:35
really less expensive
00:50:38
storage than a relational database
00:50:41
and it will store data from a variety of
00:50:45
systems so it'll store data from
00:50:46
business systems or other databases but
00:50:50
most importantly here it will store
00:50:52
diverse types of data relational
00:50:54
and non-relational from diverse sources
00:50:57
so data lake is a place where we can
00:51:00
store
00:51:01
large volumes of data inexpensively even
00:51:04
if the data
00:51:05
is not all of the same type and it's a
00:51:08
place where we can leave data that
00:51:10
will not be accessed constantly
00:51:13
so synapse analytics is an integrated
00:51:15
analytics service
00:51:17
that basically gives us off-the-shelf
00:51:21
insight into data warehouses and big
00:51:24
data systems
00:51:25
most importantly perhaps is that synapse
00:51:28
analytics was formerly known as azure
00:51:30
sql data
00:51:31
warehouse so this is the core solution
00:51:35
when it comes to data warehousing
00:51:38
hdinsight
00:51:39
will show up in discussions around
00:51:43
hadoop so it's a cloud distribution of
00:51:46
hadoop
00:51:47
that makes processing massive amounts of
00:51:50
data
00:51:51
quickly much easier and it supports a
00:51:53
number of open source frameworks so if
00:51:54
you see
00:51:55
hadoop spark hive kafka storm
00:51:58
or any of those mentioned hdinsight may
00:52:02
well be the answer that you are looking
00:52:04
for
00:52:05
so those open source frameworks are are
00:52:07
key
00:52:08
i think when it comes to hadoop and then
00:52:11
databricks
00:52:12
which is another analytics platform
00:52:15
optimized for
00:52:17
the azure platform and it offers two
00:52:20
environments
00:52:21
for developing data intensive
00:52:24
applications so so keep that phrase in
00:52:26
mind
00:52:27
they have uh the databricks sql
00:52:30
analytics and the databricks workspace
00:52:32
but when you think about developing data
00:52:34
intensive applications keep that phrase
00:52:36
in mind
00:52:37
when you're thinking about data bricks
00:52:40
so let's move into
00:52:42
machine learning and ai so there is
00:52:44
azure machine learning
00:52:46
cognitive services and the azure bot
00:52:48
service so we'll start
00:52:50
with azure machine learning so this is a
00:52:53
cloud-based
00:52:54
environment you can use to train deploy
00:52:56
automate
00:52:57
manage and track machine learning models
00:53:01
this is where you're going to bring your
00:53:04
models and
00:53:05
cognitive services are cloud-based
00:53:08
services with
00:53:09
rest apis and client library sdks
00:53:13
that help you to build cognitive
00:53:15
intelligence
00:53:16
into your application so the keywords
00:53:18
there build in applications
00:53:22
and it provides cognitive understanding
00:53:26
in five main pillars vision speech
00:53:29
language decision and search
00:53:33
so just some defining characteristics
00:53:35
for you there and again we have to
00:53:37
describe these components right so this
00:53:39
is really
00:53:40
about your being able to identify uh
00:53:43
which components
00:53:44
fit into a solution and
00:53:47
azure bot service is a managed bot
00:53:50
development service that helps you
00:53:52
connect your users via popular channels
00:53:54
it's really a purpose-built
00:53:56
environment for bot development so
00:53:58
pretty easy to spot but
00:54:00
those are the defining characteristics
00:54:01
there that will help you pick the right
00:54:02
answer
00:54:03
on some of those exam questions now
00:54:07
serverless so logic apps and functions
00:54:10
were mentioned on that list it said
00:54:13
including
00:54:14
logic app and function so i've added
00:54:16
event grid here which also falls
00:54:18
into the serverless category again the
00:54:20
list is not exhaustive it only takes a
00:54:22
minute to mention it
00:54:23
so i want to put it in front of you it's
00:54:25
important
00:54:26
so let's start with logic app a cloud
00:54:29
service that helps you schedule automate
00:54:31
and orchestrate tasks
00:54:33
business processes and workflows
00:54:40
and you can choose from a gallery
00:54:43
of hundreds of pre-built connectors both
00:54:46
microsoft connectors and connectors for
00:54:48
third-party services this is really one
00:54:50
of the defining characteristics
00:54:52
of logic app in fact power automate
00:54:54
previously known
00:54:56
as flow is built on top
00:54:59
of logic app so actually let me just
00:55:01
switch over and show you the list
00:55:04
of logic app connectors
00:55:07
there's actually a page that lists them
00:55:08
here there are hundreds of these
00:55:10
connectors
00:55:12
many for microsoft services many for a
00:55:14
third party services but
00:55:16
300 plus last i i checked count
00:55:21
and you can you can leverage these
00:55:24
you know alone or in in conjunction with
00:55:27
one another there's no rule against
00:55:29
having
00:55:30
a workflow and logic app with multiple
00:55:32
connectors involved
00:55:34
so it's a pretty exciting capability
00:55:40
so let's talk about azure functions this
00:55:43
is an event driven
00:55:44
compute on demand experience as
00:55:47
microsoft calls it that extends the
00:55:49
existing
00:55:50
azure application platform with
00:55:52
capabilities to implement
00:55:54
code triggered events uh occurring in
00:55:57
azure as well as in on-premises systems
00:56:00
but but
00:56:00
code triggered events is key here
00:56:04
i want you to pay special attention to
00:56:06
that phrase triggered by events that
00:56:08
means
00:56:09
that the functions are only running when
00:56:11
they are triggered that is a
00:56:13
hallmark of serverless we'll dig into
00:56:15
the difference between platform as a
00:56:17
service
00:56:18
and serverless in just a moment but
00:56:21
remember
00:56:22
that when we're thinking about functions
00:56:23
and event grid enables you to
00:56:26
manage events across many different
00:56:28
azure services
00:56:30
and applications let me just show you
00:56:32
here so so really event grid allows us
00:56:35
to
00:56:35
take events from a number of different
00:56:38
sources all the sources are on the left
00:56:40
here
00:56:41
and we can trigger the event grid and
00:56:44
push those over
00:56:45
to handler so it's what we call a pub
00:56:47
sub model
00:56:48
also uh it's really an
00:56:52
app or a service reacting to an event
00:56:54
sometimes you'll
00:56:55
hear it described as reactive
00:56:58
uh programming so bottom line
00:57:03
the way i think of it is is you know it
00:57:05
enables you to easily
00:57:07
push events to the configured
00:57:10
destination as opposed to the much less
00:57:16
the much less efficient pull model
00:57:20
across serverless architecture in a pull
00:57:22
model you have to set up a a
00:57:23
subscription and there's a polling that
00:57:25
happened so the push
00:57:27
model eliminates the need for the
00:57:30
the the destination to do a a polling
00:57:32
operation for the for the pull so
00:57:35
that really makes event grid a bit of a
00:57:37
game changer in that
00:57:38
respect okay so now
00:57:42
the million dollar question that i
00:57:44
promised you we would answer
00:57:46
how is serverless different from
00:57:49
platform as a service in terms of
00:57:51
responsibility and really in terms
00:57:54
of functionality
00:57:58
so let's have a look so we have on one
00:58:01
hand platform as a service and on the
00:58:03
other hand
00:58:03
serverless now they do have some common
00:58:05
elements here so there's some overlap
00:58:07
number one your devs have to write code
00:58:08
in azure
00:58:10
functions you're going to write code in
00:58:13
c sharp or powershell or
00:58:16
python or what have you uh serverless
00:58:19
same
00:58:20
scenario there's no server management
00:58:22
you know with platform as a service
00:58:24
and and serverless both uh you're
00:58:26
relieved of managing
00:58:28
the underlying infrastructure that's
00:58:30
great now here's
00:58:31
where the two differ so platform as a
00:58:34
service does give you more
00:58:36
control over the deployment environment
00:58:39
so think
00:58:40
about azure app service it's where we
00:58:42
can host
00:58:43
web applications i can configure a
00:58:46
number of
00:58:48
settings a wide variety of settings in
00:58:50
fact related
00:58:51
to the the web hosting instance there
00:58:55
which will control certain aspects of
00:58:57
how my application behaves on the
00:58:59
serverless side you have
00:59:00
less control over the deployment
00:59:03
environment
00:59:04
so think uh logic apps
00:59:07
uh for is a great example with logic app
00:59:10
uh
00:59:10
really you're working in a low code
00:59:13
scenario i mean there's there's some
00:59:15
code involved in in logic app certainly
00:59:17
you're going to be working with
00:59:19
certain code-ish elements but it's a
00:59:21
lower code environment and you have
00:59:24
no control under the over the underlying
00:59:27
environment it's just there and ready
00:59:29
for you to use
00:59:30
on the path side the application has to
00:59:33
be configured to auto scale
00:59:35
and on the serverless side the
00:59:37
application scales automatically it's
00:59:38
not your problem the scale is built into
00:59:40
the platform
00:59:42
and then on the platform as a service
00:59:44
side the application can take a while to
00:59:47
spin
00:59:47
up and i've seen this firsthand in in
00:59:50
the app service space there there are
00:59:52
things you can do to make sure your app
00:59:55
is always awake
00:59:56
and ready to answer requests but but
00:59:58
certainly a web app can go to sleep the
01:00:00
thread can go to sleep when it's not
01:00:02
executed for a certain number of minutes
01:00:04
when there are no calls coming in right
01:00:06
with serverless the application code
01:00:09
only executes when it's invoked we're
01:00:10
not worried about spinning up
01:00:12
an azure function executes when it is
01:00:16
triggered it's code triggered by events
01:00:19
uh and that's another key
01:00:22
difference
01:00:25
so serverless has some small
01:00:28
performance advantages and it relieves
01:00:30
us of certain responsibilities it just
01:00:32
adds a bit of additional polish
01:00:34
in in certain use cases but that's the
01:00:38
difference
01:00:38
so so now you'll know for the exam so
01:00:40
now we're going to move into
01:00:42
devops so we'll talk about azure devops
01:00:44
github github
01:00:45
actions and azure dev test
01:00:49
labs so azure devops this is a single
01:00:53
platform for
01:00:54
implementing devops deploying code using
01:00:57
the
01:00:58
the cicd framework that's continuous
01:01:01
integration
01:01:02
continuous deployment it's how we
01:01:04
facilitate agile
01:01:06
software development and azure devops
01:01:09
is microsoft's native platform there are
01:01:12
multiple components within azure devops
01:01:15
there's
01:01:16
a get capability called azure repos
01:01:19
you have your your kanban board
01:01:22
style functionality and azure boards
01:01:25
just to name a couple on the other hand
01:01:28
github
01:01:29
is a service that microsoft acquired
01:01:33
not too long ago it's a web-based git
01:01:36
repository
01:01:37
hosting service for source code
01:01:39
management and distributed revision
01:01:41
control now azure boards provides that
01:01:42
sort of capability but github
01:01:45
is a very widely used service across the
01:01:48
internet
01:01:49
by you know many people that don't
01:01:52
necessarily use
01:01:53
microsoft technology even it offers all
01:01:56
the functionality of git for your source
01:01:57
code management but it has a number of
01:01:59
its own
01:02:00
features github actions helps you
01:02:03
automate
01:02:04
your software development workflows from
01:02:06
within github so it
01:02:07
provides some similar functionality to
01:02:10
what we would see in
01:02:11
the ci cd uh scenario in azure
01:02:15
devops but that's really what it's
01:02:16
helping facilitate there is cicd the
01:02:19
continuous integration
01:02:20
and continuous deployment
01:02:23
and you can build test package released
01:02:25
or deploy an application
01:02:28
or project on github with a workflow
01:02:33
but cicd is the the acronym that comes
01:02:36
up frequently in devops that's uh
01:02:37
continuous integration
01:02:39
continuous deployment or sometimes
01:02:42
continuous delivery depending on who you
01:02:45
ask
01:02:47
then there's azure dev test labs which
01:02:50
provides a self-service sandbox
01:02:52
environment so you can quickly create
01:02:53
dev test environments so you're
01:02:56
minimizing the waste of deploying
01:02:58
virtual machines that sit around running
01:02:59
wasting your funds
01:03:01
makes it easier to control your cost
01:03:03
essentially so
01:03:04
sandbox is the key keyword there and
01:03:08
and the focus on minimizing waste
01:03:11
controlling cost right it's about saving
01:03:13
saving money and being more efficient in
01:03:15
our dev test process
01:03:18
if you're anything like me you don't
01:03:19
like to waste money running your azure
01:03:20
lab vms 24 7
01:03:22
and that's where the resource scheduler
01:03:24
for microsoft azure can help
01:03:26
it's got a simple web ui making it an
01:03:28
easy way to set up those vm run
01:03:29
schedules
01:03:30
and it comes with a free lifetime sub
01:03:33
for 10 vms or less
01:03:34
and you can find it in the azure
01:03:36
marketplace
01:03:37
you'll find a link in this video's
01:03:40
description
01:03:41
now we're going to move into the second
01:03:43
half of objective domain
01:03:44
3 which will focus on describing azure
01:03:48
management tool so look at the
01:03:49
functionality
01:03:50
and usage of azure portal powershell
01:03:53
azure cli
01:03:54
cloud shell and azure mobile app we'll
01:03:56
talk about azure advisor
01:03:59
azure resource manager or arm
01:04:02
templates a great deployment capability
01:04:04
will touch on azure monitor
01:04:06
and azure service health all
01:04:10
in that azure management bucket so
01:04:14
when we think about interacting with our
01:04:15
azure sub we have the azure portal which
01:04:17
we can go to in any browser
01:04:19
we have azure cloud shell which actually
01:04:21
gives us access
01:04:22
to the azure cli or azure powershell
01:04:25
in a browser very exciting capability
01:04:28
very convenient
01:04:29
we have azure powershell which we you
01:04:31
know typically access on a windows or
01:04:33
linux system
01:04:34
and then the azure mobile app which we
01:04:36
can access from any ios or android
01:04:38
device
01:04:39
and finally azure cli which is going to
01:04:42
be your
01:04:43
your bash type your bash style command
01:04:45
line
01:04:46
also accessible both on windows and
01:04:49
linux distros
01:04:54
and and to be thorough you know azure
01:04:56
you know powershell and azure cli both
01:04:58
been tested on mac os
01:04:59
so so it's not just windows and and
01:05:02
linux
01:05:03
so bear that in mind but azure portal
01:05:05
that's our web-based unified console
01:05:07
portal.azure.com where we can manage our
01:05:09
azure subscription using
01:05:11
a web-based gui it's our graphical ui
01:05:14
the cloud shell
01:05:15
is an interactive authenticated browser
01:05:18
accessible shell
01:05:19
for managing your azure resources if
01:05:21
you've not gone through any of the
01:05:23
the ms learn content related to az 900
01:05:26
or looked at any of the examples on the
01:05:28
microsoft site frequently you will find
01:05:31
quick start tutorials that leverage
01:05:33
azure cloud shell
01:05:34
to deploy the capability that you're
01:05:37
going to work with in that tutorial
01:05:40
in fact let me just show you the cloud
01:05:42
shell quickly
01:05:47
so here in the azure portal there are
01:05:49
two couple of ways i can get to the
01:05:50
cloud shell so number one at
01:05:52
portal.azure.com i can simply hit the
01:05:54
cloud shell icon here which is going to
01:05:56
switch me over to the cloud shell and
01:05:58
there i have
01:05:59
you'll see the bash version of the cloud
01:06:02
shell so if i use azure cli
01:06:04
syntax here i'll do a z account list
01:06:07
and i get a list of my azure
01:06:11
subscriptions now i can also go to
01:06:15
shell.azure.com and that's going to do a
01:06:18
redirect over to
01:06:19
start the cloud shell for me as well
01:06:23
and you notice there that we have a
01:06:24
couple of flavors right we have bash or
01:06:26
powershell so you can pick your
01:06:28
preferred
01:06:28
language i tend to to use
01:06:31
azure cli so i use the bash version but
01:06:34
uh the powershell version equally
01:06:38
valid here so i'll just flip over to the
01:06:41
powershell version and we'll have a look
01:06:44
here that took a minute to come up but
01:06:46
there we have our powershell version of
01:06:48
the command shell so i can then just
01:06:50
type powershell commandlets so i'll do
01:06:52
the same
01:06:52
operation but in powershell speaks a get
01:06:54
dash az
01:06:56
subscription and i can list my
01:06:58
subscription so
01:07:00
you can pick your language any browser
01:07:01
which means you can really take this to
01:07:03
any
01:07:03
client operating system where you you
01:07:05
have a browser you can work with so very
01:07:07
handy
01:07:08
in that respect but it includes both
01:07:11
those options
01:07:13
and now azure powershell so this is a
01:07:18
set of commandlets for managing azure
01:07:19
resources directly from
01:07:21
the powershell command line so you'd use
01:07:23
this on
01:07:25
your windows 10 client for example or
01:07:28
a linux system or even a recent build a
01:07:32
mac os
01:07:33
the azure mobile app is an app for ios
01:07:36
and android that enables manage
01:07:38
managing tracking health and status and
01:07:40
troubleshooting your azure resources i
01:07:42
tend to use the mobile app
01:07:44
for quick operations if i need to start
01:07:46
a virtual machine for example if there's
01:07:48
something small that i'd like to look
01:07:49
into i'm not a big fan of working
01:07:51
on small screens but the azure mobile
01:07:54
app has come a long way
01:07:56
over the years and and there's a lot of
01:07:58
capability
01:07:59
that at your fingertips there from the
01:08:02
phone
01:08:06
and the azure cli so this is the command
01:08:10
line interface uh abbreviated as your
01:08:13
cli actually so this is a set of
01:08:15
commands used to create and manage azure
01:08:17
resources
01:08:19
this is where we we work at the the bash
01:08:23
command line so i find azure cli is very
01:08:26
friendly to
01:08:27
open source developers who work in the
01:08:30
world of linux who who maybe don't use
01:08:32
powershell today azure cli is very
01:08:34
friendly to the
01:08:35
the other side of the house as i
01:08:37
sometimes refer to them
01:08:38
but it's available on windows mac os
01:08:40
linux docker
01:08:42
and azure cloud shell so you can get to
01:08:44
it everywhere
01:08:47
azure advisor so azure advisor scans
01:08:51
your azure configuration and it
01:08:52
recommends changes to optimize
01:08:54
deployments
01:08:56
increase security and save you money
01:09:00
but it analyzes the configuration of the
01:09:03
resources
01:09:04
present in the azure subscription
01:09:08
so already present meaning existing
01:09:10
resources right this isn't uh
01:09:12
isn't taking place on new deployments
01:09:14
that aren't yet deployed it's focusing
01:09:16
on
01:09:17
four areas again high availability
01:09:19
security performance
01:09:20
and costs of those existing deployments
01:09:23
in fact you get a prompt sometimes when
01:09:25
you log into the portal that azure
01:09:26
advisor would like to
01:09:28
help you out now we're going to talk
01:09:32
about azure resource
01:09:33
manager templates or arm templates for
01:09:35
short
01:09:36
so an arm template is a json file that
01:09:39
describes the infrastructure and
01:09:41
configuration for our project it's how
01:09:43
we describe
01:09:44
to azure what we would like to deploy
01:09:48
and generally speaking arm templates are
01:09:50
the preferred
01:09:51
deployment methodology in azure and
01:09:54
there's a good reason for that
01:09:56
that's because in part arm templates use
01:10:00
a declarative syntax declarative means
01:10:03
that we
01:10:04
describe our desired end result
01:10:07
in that json document without spelling
01:10:10
out
01:10:10
the exact steps that are required the
01:10:13
exact step-by-step process
01:10:15
required to achieve that end result so
01:10:17
we save a lot of time
01:10:19
writing out step-by-step code
01:10:22
in a script for example so it's very
01:10:25
efficient in that respect
01:10:26
arm templates are also idempotent which
01:10:29
means we can deploy that
01:10:31
template as many times as we want and we
01:10:33
get the same resources and the same
01:10:35
state as an end result so if i would
01:10:38
like to deploy one virtual machine
01:10:40
behind an azure firewall attached to a
01:10:42
virtual network if i run that template
01:10:45
five times at the end of the day i will
01:10:48
still have
01:10:49
in that template for vm1 after five runs
01:10:52
i will have a single virtual machine
01:10:54
named vm1
01:10:55
configured as that template defined
01:11:00
and that property of being idempotent or
01:11:04
or idempotent
01:11:05
means that when we have a situation
01:11:08
where maybe our environment has been
01:11:10
changed by
01:11:10
unauthorized manual changes in some way
01:11:14
i can rerun that deployment template
01:11:17
and bring my environment up to
01:11:20
the component and the state the same
01:11:22
resources and state
01:11:24
that i desire so very handy in that
01:11:27
respect you'll you'll often hear arm
01:11:28
templates
01:11:30
used in the same sentence as the phrase
01:11:32
infrastructure as code that's really
01:11:34
what we're doing here
01:11:37
and i can deploy arm templates
01:11:41
from azure powershell azure cli
01:11:44
and azure devops in the azure portal i
01:11:46
can use them everywhere really the
01:11:48
ability to use arm templates is
01:11:49
ubiquitous
01:11:51
throughout my my azure tooling in that
01:11:54
respect
01:11:55
all right so azure monitor is a service
01:11:57
that collects
01:11:58
monitoring telemetry from from a variety
01:12:02
of ad not only azure sources but
01:12:04
on-premises sources we can use
01:12:06
an agent to gather data
01:12:09
and management tools like azure security
01:12:12
center also push
01:12:13
log data to azure monitor in fact azure
01:12:17
monitor aggregates and stores this
01:12:19
telemetry in an azure log
01:12:22
analytics instance so so that log
01:12:25
analytics instance is the back end
01:12:27
data store
01:12:31
and finally azure service health this
01:12:33
notifies us
01:12:34
about azure service incidents and plan
01:12:37
maintenance
01:12:38
so we can take action to mitigate
01:12:40
downtime
01:12:42
very simple all about notification
01:12:46
and now we're moving into objective
01:12:48
domain 4 which is describe
01:12:51
general security and network security
01:12:53
features
01:12:54
and if we look at the skills measured
01:12:57
here
01:12:58
objective domain 4 is broken into a
01:13:00
couple of parts there's
01:13:02
describe azure security features and
01:13:04
describe
01:13:05
azure network security so let's dive
01:13:09
right in so the first part here
01:13:11
describing security features we'll talk
01:13:13
about
01:13:14
azure security center including
01:13:16
functionality within
01:13:18
security center like policy compliance
01:13:20
security alerts secure score and
01:13:21
resource
01:13:22
hygiene describing the functionality and
01:13:26
usage of key vault
01:13:28
functionality around azure sentinel
01:13:30
microsoft security information
01:13:33
an event management solution and then
01:13:35
finally
01:13:36
functionality and usage of azure
01:13:38
dedicated
01:13:39
hosts so let's get right to it so
01:13:43
we have security center key vault azure
01:13:46
sentinel and dedicated host so we'll
01:13:47
start
01:13:48
with security center so this is a
01:13:51
unified
01:13:51
infrastructure security management
01:13:53
system that basically
01:13:56
strengthens our security posture
01:14:01
through security guidance so security
01:14:04
center
01:14:04
will provide guidance around compute
01:14:08
data network storage apps and other
01:14:12
services i think the best way to
01:14:15
tell you about this is to simply show
01:14:16
you so let's take a quick look
01:14:18
at security center
01:14:22
i'll switch over to my azure portal and
01:14:25
from
01:14:26
the left menu here i can click on
01:14:28
security center and bring up
01:14:29
my security center overview page so
01:14:32
amongst
01:14:32
some of the features mentioned in the
01:14:34
skills measured i see my secure score
01:14:36
here which
01:14:37
shows me my current score relative to
01:14:40
the maximum score with a link
01:14:42
with options to improve my score that
01:14:44
link will actually take me to the
01:14:46
recommendations
01:14:47
and in here we will see some of the
01:14:50
the recommendations around resource
01:14:52
hygiene the recommendations are listed
01:14:55
in
01:14:55
descending order based on their
01:14:57
potential to increase
01:14:59
my score so for example
01:15:02
enabling mfa across all accounts with
01:15:04
owner permissions and it shows me the
01:15:06
subscriptions where i need to do that
01:15:08
red means work needs to be done green
01:15:12
would be healthy and we'll see the
01:15:16
security alerts
01:15:18
capability here so alerts are just
01:15:19
surfaced in the uh the
01:15:22
right here in the portal if anything has
01:15:24
uh has arisen
01:15:26
uh i can look at pricing and settings
01:15:27
and here's where i can see some
01:15:29
difference between
01:15:30
the free tier and the paid tier or the
01:15:32
standard tier
01:15:33
of security center you're also going to
01:15:35
notice here that it mentions azure
01:15:36
defender so
01:15:38
at microsoft ignite uh the big
01:15:40
conference in in
01:15:41
late 2020 there was a rebranding of
01:15:44
microsoft security products bringing
01:15:46
them all under the microsoft defender
01:15:48
family and security center
01:15:51
comes under the azure defender moniker
01:15:54
so this is really just a bit of branding
01:15:56
here the the functionality uh whether
01:15:57
it's security center or listed as azure
01:15:59
defender
01:16:00
uh is the same uh that's merely a
01:16:03
branding chain
01:16:04
so there's actually a link to a related
01:16:08
video
01:16:08
in the video description here that will
01:16:11
walk you through
01:16:12
those branding changes that happened at
01:16:14
microsoft ignite but i wanted to bring
01:16:16
you here to show you that
01:16:18
we can see here the difference between
01:16:19
the free tier of security center and the
01:16:21
paid tier so in the free tier we get the
01:16:23
continuous assessment we get the
01:16:25
resource
01:16:25
hygiene and the security recommendations
01:16:27
we get the secure score but what we're
01:16:29
missing
01:16:30
are advanced features like just-in-time
01:16:32
vm access uh regulatory compliance
01:16:35
uh any sort of advanced threat
01:16:38
protection the elements that
01:16:39
that add uh advanced functionality or
01:16:42
intelligence as i like to call them many
01:16:43
times are missing
01:16:44
and when i turn azure defender on when i
01:16:47
go to that standard tier i can come down
01:16:49
here and turn
01:16:50
defender defender on security center on
01:16:53
for specific workloads you see here that
01:16:56
servers and app service and azure sql
01:16:59
and kubernetes and key vault they're all
01:17:01
of these workloads are split out i can
01:17:02
see the pricing very clearly
01:17:04
i could even use policy to
01:17:08
exclude certain instances if i didn't
01:17:11
want to
01:17:12
to pay for a hundred percent of my
01:17:14
servers or a hundred percent of my azure
01:17:16
sql databases i can certainly break
01:17:18
those resources off into separate
01:17:19
subscriptions but even
01:17:21
at the subscription level i could get in
01:17:23
here and
01:17:24
configure that with a little more
01:17:26
granularity but
01:17:27
point being you get some free
01:17:29
functionality here that gives you the
01:17:30
basics to
01:17:31
to help improve the security of your
01:17:33
environment
01:17:34
really important feature very likely to
01:17:37
come up
01:17:38
on the exam azure key vault is a place
01:17:42
where
01:17:42
we can securely store and access
01:17:46
secrets and this cloud service allows us
01:17:48
to store
01:17:49
anything that we want to tightly control
01:17:51
access to whether it's an api key a
01:17:53
password
01:17:54
a a an ssl certificate a certificate
01:17:57
we'd use for secure http
01:17:59
communication for example or cryptogear
01:18:02
cryptographic keys and i can access
01:18:06
key vault from a variety
01:18:09
of methods so i can access the key vault
01:18:14
from
01:18:14
the azure portal i can access it from
01:18:17
azure devops from my
01:18:19
arm templates from powershell azure cli
01:18:23
programmatically via api so
01:18:27
really ubiquitous in terms of how i can
01:18:30
access my secrets during the you know
01:18:33
various
01:18:34
deployment options that i have for azure
01:18:36
now azure sentinel
01:18:38
is microsoft's cloud native security
01:18:41
information event
01:18:42
management solution which comes with the
01:18:45
additional
01:18:46
functionality known as soar security
01:18:48
orchestration automated
01:18:50
response so not only can we
01:18:53
ingest data from
01:18:56
our many services in azure and our third
01:18:59
party
01:19:01
services that have security information
01:19:03
to provide us like firewalls and network
01:19:05
devices for example
01:19:07
but azure sentinel can provide
01:19:11
orchestrated automated response where
01:19:14
necessary an azure sentinel has
01:19:19
built-in ai uh there's a feature called
01:19:22
fusion that's enabled by default so so
01:19:24
ai
01:19:25
comes in azure sentinel right out of the
01:19:27
box and microsoft is always working to
01:19:29
improve that capability
01:19:31
uh but but azure sentinel is quite easy
01:19:33
to set up because
01:19:34
you're by and large enabling a broad
01:19:37
range of connectors uh you know for for
01:19:40
everything from
01:19:41
azure active directory logs to office
01:19:43
365 connectors
01:19:45
to which don't require much beyond
01:19:47
pushing a couple of buttons to
01:19:50
connectors that do require some
01:19:51
configuration such as ingesting syslog
01:19:54
or common event format data from
01:19:56
your network devices
01:20:00
and dedicated hosts azure dedicated
01:20:02
hosts are
01:20:03
just what they probably sound like to
01:20:05
you it's a dedicated physical server
01:20:06
that's able to host
01:20:08
you know one or more virtual machines in
01:20:09
a single azure subscription so a host
01:20:11
that you are not
01:20:13
sharing and and i can definitely think
01:20:15
of a few
01:20:16
very high security
01:20:19
uh scenarios life and death situations
01:20:23
where having
01:20:24
a dedicated host for security and or
01:20:27
performance
01:20:28
may well be desirable such as if
01:20:31
life or death human safety were involved
01:20:34
so we're going to finish out objective
01:20:36
domain 4 by looking at
01:20:38
the last half of that domain which is uh
01:20:40
azure network security so we'll talk
01:20:42
about defense and depth network security
01:20:44
groups azure firewall
01:20:46
azure distributed denial of service
01:20:50
protection so why don't we start with
01:20:51
defense and depth this is a concept
01:20:54
that espouses that promotes a layered
01:20:58
approach to security basically not
01:21:00
relying on one method to completely
01:21:02
protect our environment but layering in
01:21:04
multiple tools to provide
01:21:06
better security posture a pretty
01:21:09
widely uh adopted concept in the world
01:21:12
of cyber security
01:21:14
a network security group is a construct
01:21:17
that contains security rules that allow
01:21:19
or deny
01:21:20
inbound traffic network traffic to
01:21:24
a component a service or outbound
01:21:26
traffic from
01:21:27
several types of azure resources for
01:21:30
each
01:21:31
rule in a network security group you can
01:21:33
specify a source and a destination
01:21:35
important protocol
01:21:36
and an allow or deny and
01:21:39
you can apply network security groups to
01:21:42
a subnet or on a vm we can even attach
01:21:44
it to a network adapter
01:21:46
in fact why don't i just show you a
01:21:49
network security group right quick so
01:21:50
i'll switch over to my azure portal i'm
01:21:52
going to click on the
01:21:53
resource group for the virtual machine
01:21:55
we looked at earlier in the course
01:21:57
and there's a network security group
01:21:59
created automatically when you deploy an
01:22:01
azure vm and so for a windows
01:22:03
vm when i look at my network security
01:22:05
group
01:22:06
i will see inbound security rules and
01:22:09
outbound security
01:22:10
rules so the the last rule in terms of
01:22:13
priority on the inbound is deny all
01:22:16
inbound so it's any port any protocol
01:22:18
any source any destination
01:22:20
so the only thing i have coming from any
01:22:22
source which would include the internet
01:22:24
is i have an allow rule here that allows
01:22:26
remote desktop protocol so i can use rdp
01:22:29
to attach to this vm and you see the
01:22:31
little warning symbol there just
01:22:32
alerting me that hey you have a
01:22:34
port open to the internet i could
01:22:37
protect this
01:22:38
using the just in time vm access feature
01:22:43
in azure security center in in azure
01:22:45
defender
01:22:46
if i wanted but that gives you a good
01:22:49
idea of the default it feels a little
01:22:51
bit like a firewall
01:22:52
uh but but it's not so so it's really um
01:22:56
something a bit different in in that
01:22:58
respect but uh
01:23:01
network adapter by the way you know you
01:23:03
may see that referred to as
01:23:05
nick in some questions so if you're not
01:23:07
super technical and
01:23:08
you haven't heard of nick um network
01:23:11
adapter and nick are
01:23:12
two ways to refer to the same thing
01:23:16
all right azure firewall so this is a
01:23:19
managed
01:23:20
cloud-based network security service
01:23:21
that protects your azure virtual network
01:23:24
resources and it's a fully
01:23:27
stable firewall as a service it's called
01:23:30
it has built-in high availability
01:23:34
and unrestricted cloud
01:23:37
scalability
01:23:40
so among the many interesting things
01:23:42
about azure firewall is i don't have to
01:23:45
deploy multiple virtual network
01:23:47
appliances for
01:23:48
that high availability and scalability
01:23:51
it's built into the service for me so
01:23:54
aha
01:23:54
comes out of the box by default
01:23:58
then finally azure ddos so this is a
01:24:02
service that
01:24:02
provides enhanced distributed denial of
01:24:06
service mitigation features to defend
01:24:08
against
01:24:09
distributed denial of service or ddos
01:24:12
attacks
01:24:13
do bear in mind there is a basic tier
01:24:18
of azure ddos so the standard tier
01:24:21
provides
01:24:22
enhanced ddos mitigation and that
01:24:25
enhanced
01:24:26
tier that standard tier we call it
01:24:28
includes logging alerting
01:24:30
and telemetry that you don't get in the
01:24:31
free basic tier that's present
01:24:33
everywhere by default you don't have to
01:24:34
do anything
01:24:36
for the basic tier now we're going to
01:24:39
move into objective domain 5 where we'll
01:24:41
talk about
01:24:42
identity governance privacy and
01:24:44
compliance features
01:24:45
in azure and this objective domain
01:24:49
is broken up into a few parts so we have
01:24:51
described core azure identity services
01:24:54
describe azure governance features and
01:24:57
describe
01:24:58
privacy and compliance resources so
01:25:01
let's start with azure identity services
01:25:04
we'll talk about the difference between
01:25:06
authentication and authorization
01:25:08
we'll talk about azure active directory
01:25:11
and what is azure ad
01:25:13
exactly and finally we'll
01:25:16
touch on some related concepts that pop
01:25:19
up in azure active directory discussions
01:25:22
specifically conditional access
01:25:23
multi-factor authentication and
01:25:26
single sign-on so let's start
01:25:30
with authentication and authorization
01:25:34
which we we also call authen and auth
01:25:36
z so authentication is the process of
01:25:38
proving
01:25:39
that you are who you say you are
01:25:42
and then authorization is the act of
01:25:45
granting
01:25:46
that authenticated party permission
01:25:49
to do something so i kind of think of
01:25:53
this as identity and access really if
01:25:54
i'm
01:25:55
breaking it down into plain english now
01:25:57
azure active directory which is azure ad
01:26:00
for short is microsoft's cloud-based
01:26:03
identity
01:26:04
and access management service it helps
01:26:07
our employees sign
01:26:08
in and access resources uh internal
01:26:11
resources such as
01:26:12
apps on our corporate network or custom
01:26:14
cloud apps
01:26:15
or external resources like microsoft 365
01:26:19
and the azure portal and many
01:26:21
sas apps that show up in the catalog
01:26:24
or that i integrate or federate with my
01:26:26
azure ad instance
01:26:30
so let's touch on single sign-on
01:26:33
multi-factor authentication and
01:26:35
conditional access and we'll have a look
01:26:38
at azure ad in a moment so we can tie
01:26:41
all of these concepts together
01:26:43
and and just solidify in your mind what
01:26:45
we're talking about here conceptually so
01:26:47
single sign-on
01:26:48
means a user doesn't have to sign into
01:26:50
every application they use
01:26:52
uh essentially the user logs in once and
01:26:54
that credential is is reused
01:26:57
for multiple apps but but the
01:27:00
logging in once is the the key there and
01:27:04
single sign-on based authentication
01:27:07
systems are
01:27:08
often called modern authentication
01:27:12
the multi-factor authentication works by
01:27:14
essentially requiring
01:27:16
two or more authentication methods so
01:27:19
beyond just entering a password
01:27:21
um mfa would would take something you
01:27:24
know like a pin or a password and couple
01:27:26
that with
01:27:26
something you have like a trusted device
01:27:30
uh and or or something that you are like
01:27:33
a biometric like
01:27:34
uh using your face uh or a fingerprint
01:27:38
so
01:27:38
something you have a trusted device with
01:27:40
the authenticator app is is typically
01:27:43
how
01:27:44
we we see folks authenticating to azure
01:27:47
active directory
01:27:50
and the the whole idea of authentication
01:27:53
and authorization the concepts we're
01:27:54
talking about here the the
01:27:56
rabbit hole runs really deep you you can
01:27:58
expect that you won't
01:27:59
get into too much depth on the az900
01:28:02
exam
01:28:03
uh thankfully conditional access
01:28:06
uh is used by azure active directory to
01:28:08
bring signals together to make decisions
01:28:11
and enforce
01:28:12
organizational policies in scenarios
01:28:16
where a user attempts to access
01:28:18
resources so essentially
01:28:20
a user when they when they attempt to
01:28:22
log in
01:28:23
a conditional access policy is going to
01:28:25
look at their location the device
01:28:27
the application they're trying to log
01:28:30
in with and then real-time risk are they
01:28:34
coming from a strange ip address for
01:28:36
example
01:28:38
and and based on that we'll
01:28:41
verify the access attempt and allow
01:28:43
access or if there's some risk require
01:28:46
multi-factor authentication or if
01:28:48
there's
01:28:48
extreme risk you know block access
01:28:50
altogether
01:28:51
and if the user gets past these gates
01:28:55
they can get to the resource they are
01:28:57
requesting access to
01:29:00
so let me just switch over to the azure
01:29:02
portal and show you around
01:29:03
conditional access in azure ad briefly
01:29:06
so we'll just switch over to
01:29:08
portal.azure.com and i've actually
01:29:10
clicked on
01:29:10
active directory and if i scroll down
01:29:12
under security
01:29:14
i can get down here to conditional
01:29:16
access and we'll just look at a
01:29:18
conditional access policy i'll really
01:29:22
just get down into any
01:29:23
conditional access policy so you can see
01:29:25
some of the settings so i can
01:29:27
assign a policy to specific users and
01:29:31
groups and i can include and exclude
01:29:34
users based on who they are or the roles
01:29:37
they're in
01:29:38
i can assign my policy to be
01:29:41
effective for specific apps or even all
01:29:44
apps
01:29:45
and i can you know put some exclusions
01:29:48
in here it can be very
01:29:49
selective so all cloud apps i can
01:29:51
exclude specific apps
01:29:53
when i get down to conditions here
01:29:54
you'll see that i can
01:29:56
provide other conditions that my policy
01:29:59
can use to assess
01:30:00
the access attempt so if i've turned on
01:30:04
the identity protection feature there's
01:30:07
which comes in the higher plan two tier
01:30:10
of azure id i can incorporate risk into
01:30:14
the process so if the user
01:30:16
is assessed as being medium or high risk
01:30:18
based on their circumstances
01:30:21
maybe they're coming from an unfamiliar
01:30:23
ip or they've exhibited
01:30:24
impossible travel we can
01:30:27
take action based on that we can look at
01:30:31
sign in risk so the specific risk level
01:30:36
and which levels this policy will apply
01:30:39
to
01:30:40
i can look at device platform so i could
01:30:42
enable this
01:30:44
policy to be specific to certain devices
01:30:47
maybe
01:30:48
i'm i'm only looking at my mobile
01:30:50
platforms for this particular
01:30:52
rule for example or maybe i'm just
01:30:54
looking at my windows desktops
01:30:56
i can look at location so just as
01:30:59
important as providing a second factor
01:31:01
of authentication
01:31:02
it's not providing a second factor when
01:31:05
it's not necessary so for example
01:31:08
i might want to exclude named
01:31:11
locations so if i have trusted locations
01:31:15
like
01:31:16
my office for example i don't want to
01:31:18
prompt a user when they're coming from a
01:31:19
trusted managed device in the office
01:31:21
that's really just annoying isn't it
01:31:24
so i might exclude those locations
01:31:27
but lots of capabilities here and then
01:31:30
once all my
01:31:32
settings are met or not i can then
01:31:34
configure the conditions under which i
01:31:36
grant access
01:31:37
so for example i can block access based
01:31:40
on conditions or i can grant access
01:31:42
based on
01:31:43
one or multiple of these items you'll
01:31:46
notice here i can require multi-factor a
01:31:48
device to be marked as compliant a
01:31:50
device to be hybrid azure adjoined
01:31:53
or using an approved app and you'll
01:31:56
notice here
01:31:57
for multiple controls i can require all
01:31:59
or require only one
01:32:01
of these items so so a lot of
01:32:04
flexibility
01:32:05
in azure ad conditional access and i can
01:32:08
even able enable a policy to report only
01:32:11
so i can
01:32:12
apply a policy in report only mode and
01:32:14
see
01:32:15
what the the impact would be so
01:32:19
pretty exciting functionality really so
01:32:21
next in
01:32:22
objective domain five we'll talk about
01:32:24
azure governance features we'll touch on
01:32:26
role-based access control
01:32:28
resource locks using tags
01:32:32
functionality around azure policy we'll
01:32:34
touch on blueprints
01:32:36
and briefly touch on the cloud adoption
01:32:40
framework
01:32:40
for azure so governance features we have
01:32:44
role-based access control so this helps
01:32:46
us manage
01:32:47
who has access to azure resources what
01:32:49
they can do with those resources
01:32:51
and which areas they have access
01:32:55
to and this is built on
01:32:59
azure resource manager it provides
01:33:01
fine-grained
01:33:02
access management of azure resources and
01:33:05
in fact if i look in
01:33:08
azure active directory there's a roles
01:33:10
and administrator
01:33:11
area where i can see pre-defined roles
01:33:14
that are available to me so i can
01:33:16
configure a very
01:33:18
granular role-based access control
01:33:20
strategy and incidentally i can
01:33:22
also use the new custom role option here
01:33:24
to create
01:33:25
custom roles so i can even further
01:33:29
target my role-based access control
01:33:32
strategy so how i delegate permissions
01:33:35
in my
01:33:36
environment so resource locks
01:33:40
allow us to prevent users in our
01:33:42
organization from accidentally deleting
01:33:44
or modifying
01:33:45
critical resources deployed in our azure
01:33:48
subscription so the lock
01:33:49
overrides any permissions that the user
01:33:52
might have
01:33:54
so it's a preventative measure really
01:33:58
so let's talk about azure governance
01:34:00
let's get into
01:34:02
policy initiatives and blueprints so
01:34:05
azure policy this is a definition of the
01:34:08
conditions that we want to
01:34:10
control or govern in our environment
01:34:14
so we use azure policy to
01:34:18
help enforce our standards so i can
01:34:21
ensure that
01:34:22
virtual machines are only deployed in
01:34:25
certain sizes they're only deployed
01:34:28
to certain regions i can enforce
01:34:33
naming conventions uh quite a wide
01:34:35
variety
01:34:36
and an initiative is a collection
01:34:39
of azure policy definitions that are
01:34:42
grouped together to help
01:34:43
work towards a specific goal and
01:34:46
way back in objective domain one we
01:34:49
talked about
01:34:50
management groups and subscriptions for
01:34:53
example so management groups are
01:34:55
really common boundary used to apply
01:34:59
our policy so we can actually enforce
01:35:02
our standards across
01:35:03
multiple subscriptions at the same time
01:35:06
it's how we
01:35:07
we can manage we can provide that
01:35:09
consistency
01:35:11
at scale so you may
01:35:14
see blueprint come up somewhere a
01:35:16
blueprint is a container for composing
01:35:19
sets of standards patterns and
01:35:20
requirements for for
01:35:22
implementation of our our services
01:35:24
security and design and azure
01:35:27
blueprint is often used in the same
01:35:29
sentence as the phrase
01:35:30
new environment and incidentally
01:35:33
blueprint was not mentioned on the
01:35:35
skills measured but
01:35:37
again going back to that phrase neither
01:35:40
exhaustive nor definitive i wanted to
01:35:43
just mention blueprint so you've you've
01:35:45
got that in your head in case blueprints
01:35:47
shows up somewhere
01:35:51
and tags so a tag is a name and a value
01:35:55
pair
01:35:55
used to logically organize azure
01:35:58
resources
01:35:58
resource groups or subscriptions into a
01:36:02
logical taxonomy an ordered structure
01:36:05
that is to say
01:36:10
so tags are often the basis for applying
01:36:12
business policies
01:36:13
or tracking costs for example i might
01:36:16
have a tag that contains the cost center
01:36:19
i might have a tag that contains the
01:36:21
owner of a resource so so i can use it
01:36:23
for
01:36:24
for tracking costs or or i may use tags
01:36:27
in the application of policy enforcing
01:36:29
my standards
01:36:31
on an environment and and we can even
01:36:35
enforce tagging rules within
01:36:37
our azure policy so we can make sure
01:36:38
that when resources are deployed the
01:36:40
appropriate to the required tags that we
01:36:43
would like applied are in fact applied
01:36:47
so we don't let resources go into our
01:36:48
environment without tags which could be
01:36:50
important in making sure we can always
01:36:52
track costs
01:36:53
we can always apply business policies we
01:36:55
always have an owner of a resource
01:36:57
should there be a need to contact the
01:36:59
owner
01:37:02
you may see questions around the cloud
01:37:04
adoption framework and you just
01:37:06
need to understand what the cloud
01:37:07
adoption framework is for really you're
01:37:09
not expected to know this at any level
01:37:11
of technical depth so the cloud adoption
01:37:13
framework is guidance from microsoft
01:37:15
designed to help you
01:37:16
create and implement the the business
01:37:19
and technology
01:37:20
strategies uh you want to succeed
01:37:24
in your azure deployments and i'm
01:37:25
actually just going to switch over to a
01:37:27
browser here so the cloud adoption
01:37:28
framework
01:37:30
for azure is laid out in the form of
01:37:32
documentation and tools and if i scroll
01:37:35
down here
01:37:36
they they've defined a cloud adoption
01:37:39
journey
01:37:40
that starts with strategy we we plan
01:37:43
uh prepare our environment go through
01:37:46
the
01:37:47
migration process there's governance
01:37:50
section and then
01:37:51
some guidance around ongoing management
01:37:54
so so
01:37:55
it pays before the exam to just read
01:37:57
through this get a feel
01:37:58
for the resources available in
01:38:01
microsoft's cloud adoption framework
01:38:04
and in the final section of objective
01:38:06
domain 5 we'll talk about privacy and
01:38:08
compliance resources so a decidedly less
01:38:11
technical subject so we'll talk about
01:38:14
the core tenants of security privacy
01:38:16
and compliance uh we'll talk through
01:38:19
briefly the the microsoft privacy
01:38:21
statement online service terms
01:38:24
and the data protection amendment
01:38:25
there's actually a mistake
01:38:27
in the az 900 skills measured here so
01:38:30
i'll talk to you about that
01:38:32
as well we'll talk about the purpose of
01:38:34
the trust center we'll take a look at
01:38:36
where you find the azure compliance
01:38:37
documentation
01:38:39
and then talk briefly about azure
01:38:42
sovereign
01:38:42
region specifically talking about uh
01:38:45
government and
01:38:46
and china and we'll throw germany in
01:38:49
there for good measure
01:38:51
so let's start with the the tenets of
01:38:54
security
01:38:55
privacy and compliance so security is
01:38:58
about protecting data that's entrusted
01:39:01
to microsoft using strong encryption and
01:39:04
access control so this is really about
01:39:06
how microsoft
01:39:08
protects our data the data that we
01:39:11
entrust
01:39:12
to the the microsoft and their platforms
01:39:15
and privacy is about
01:39:17
uh microsoft making meaningful choices
01:39:20
about how they collect data and why
01:39:23
that data is being collected and used
01:39:26
and
01:39:27
of course informing customers
01:39:31
that that data is in fact being
01:39:33
collected
01:39:35
you know one of the the most admirable
01:39:38
admirable things about microsoft is how
01:39:43
transparent they are about our
01:39:47
privacy versus many big tech companies
01:39:50
out there today but they're
01:39:51
microsoft always does their best to tell
01:39:53
us how they're collecting that data
01:39:55
why that data is being collected and
01:39:58
used so we're never in the dark
01:40:00
about that we're never the product so to
01:40:02
speak
01:40:03
and then compliance with regulations is
01:40:06
critical
01:40:06
and microsoft aims to ease this task
01:40:10
for azure customers which in part means
01:40:13
giving us the ability to see which
01:40:16
regulatory
01:40:17
compliance standards out there for which
01:40:19
azure has been
01:40:21
certified
01:40:24
so part of our compliance with
01:40:27
regulatory standards as a customer would
01:40:29
be ensuring that our services are
01:40:31
running
01:40:32
in an environment that is in fact
01:40:34
compliant
01:40:35
with those same standards or at least
01:40:37
has the controls to allow us to
01:40:39
configure
01:40:40
our services in such a way that they are
01:40:42
compliant
01:40:44
and the azure compliance documentation
01:40:47
has been grouped together to make it
01:40:49
easy to find microsoft groups
01:40:50
that compliance documentation
01:40:53
geographically
01:40:54
and and by industry as well
01:41:00
and you'll also find template audit
01:41:02
documents that you can tailor
01:41:04
to to your needs or to your customers
01:41:06
needs if if you're a partner
01:41:08
so let me just switch over to the azure
01:41:10
portal quickly here
01:41:12
so if we look at the azure compliance
01:41:15
documentation area here you'll see that
01:41:17
the
01:41:18
compliance offerings are are sorted uh
01:41:21
based on industry as i mentioned right
01:41:24
and then you'll also see some regions so
01:41:26
there are some some standards that are
01:41:28
global of course but if i scroll down
01:41:30
here i see
01:41:32
geographies and industry right so
01:41:34
there's america's apac
01:41:36
emea so pretty well documented it's
01:41:39
searchable here so
01:41:41
so all of the compliance documentation
01:41:43
you need to ensure your organization
01:41:45
complies a legal or regulatory standard
01:41:47
that's right here so just
01:41:49
know that's available for the exam and
01:41:51
how it's it's organized
01:41:55
all right and let's talk about the
01:41:59
microsoft privacy statement which
01:42:01
explains
01:42:02
what data microsoft processes how
01:42:05
microsoft processes that data and for
01:42:07
what purpose
01:42:08
the data is utilized so the what and the
01:42:12
how and then really what purpose
01:42:14
tells us why they are processing that
01:42:18
data
01:42:19
online service terms this contains all
01:42:22
the terms and conditions for software
01:42:24
and online services through microsoft
01:42:26
commercial
01:42:27
licensing programs and this is an area
01:42:30
where there's a small
01:42:32
error in the az 900 skills measure
01:42:35
because the online
01:42:36
service terms has been re-named
01:42:40
consolidated within another document
01:42:42
called the
01:42:43
product terms site and and the online
01:42:45
service terms or ost
01:42:48
has been archived so uh ost
01:42:51
and is now contained within product
01:42:54
terms so
01:42:55
so i'm not sure which you'll see on the
01:42:56
exam i just wanted to point that out
01:42:58
that there's been a change that hasn't
01:42:59
made its way into the exam
01:43:02
as of february uh 2021 or at least
01:43:06
hasn't made its way into the exam skills
01:43:08
measured area
01:43:10
let's put it that way but it focuses on
01:43:12
commercial licensing just
01:43:14
park that in the back of your head
01:43:17
you'll also want to know the purpose of
01:43:19
the
01:43:20
data protection amendment or dpa as it's
01:43:24
called out in
01:43:25
the skills measured so this further
01:43:27
defines data processing and security
01:43:29
terms for online services
01:43:31
uh gives us information around
01:43:34
compliance
01:43:35
disclosure security data transfer
01:43:38
and data retention this is another
01:43:42
minor typographical error in the skills
01:43:46
measured for az900 the data protection
01:43:48
amendment is actually the data
01:43:50
protection addendum
01:43:52
so the dpa is data protection addendum
01:43:55
don't overthink it i just wanted to
01:43:56
point that out in case
01:43:58
it shows up in a form different than
01:44:01
what you see in the skills measured as
01:44:03
of february
01:44:04
2021 just worth worth having that
01:44:07
information in hand
01:44:09
and the trust center this is where you
01:44:12
can learn about the four
01:44:14
foundational principles of trust with
01:44:16
microsoft security
01:44:18
privacy compliance and transparency so
01:44:22
the the four principles of trust will be
01:44:24
the the key to remember
01:44:26
uh as you go into the exam
01:44:29
in fact if you just uh in a browser go
01:44:31
to the the trust center at microsoft
01:44:34
you can see those four principles called
01:44:37
out
01:44:38
uh in their their statement right here
01:44:40
on the uh the trust center
01:44:42
home page
01:44:46
and in fact uh you can get to that trust
01:44:49
center quite easily it's just
01:44:51
microsoft.com ford slash
01:44:53
trust all right
01:44:56
azure sovereign region so these are
01:44:58
special
01:45:00
regions that you might need to consider
01:45:03
for legal or compliance
01:45:04
purposes so specifically i'm talking
01:45:07
about azure government as your uh
01:45:09
china and germany so so these
01:45:12
regions have a couple of things in
01:45:14
common number one they're operated by
01:45:17
special trustees
01:45:20
so in the case of uh government
01:45:22
government that's u.s
01:45:23
government it's operated by screened
01:45:26
persons
01:45:27
uh the china cloud
01:45:31
in azure is operated by a china-based
01:45:35
trustee it's a partnership between
01:45:38
microsoft
01:45:39
and a company called 21vnet
01:45:43
and similarly germany has a a trustee
01:45:46
model
01:45:47
uh in that situation as well and then uh
01:45:50
there's physical and logical
01:45:51
isolation in particular with uh with the
01:45:54
us
01:45:55
government cloud it's described
01:45:58
as a physical and logical network
01:46:00
isolated instance
01:46:04
all right we're ready for the big finish
01:46:06
here so objective domain
01:46:08
six is described as your cost management
01:46:10
and service
01:46:11
level agreement you're almost there
01:46:15
so in objective domain six we have
01:46:18
described the methods for planning and
01:46:20
managing costs
01:46:21
describe azure service level agreements
01:46:24
and service life cycles
01:46:26
so just these two parts let's start with
01:46:28
part one here we'll talk about
01:46:30
uh what can affect costs how we can
01:46:33
reduce costs and then we'll touch on the
01:46:35
functionality of the pricing calculator
01:46:38
and the total cost of ownership
01:46:40
calculator
01:46:42
and functionality and usage of azure
01:46:45
cost
01:46:46
management so cost impact so
01:46:49
so factors that can affect azure
01:46:51
resource cost
01:46:52
include the types of resources we're
01:46:54
deploying
01:46:55
are we deploying vms are we deploying
01:46:58
cosmos db
01:47:01
the location we're deploying so the the
01:47:03
cost of resources will vary slightly by
01:47:06
location and maybe considerably when you
01:47:09
switch between
01:47:11
different geographies and ingress and
01:47:14
egress traffic so so
01:47:16
ingress traffic is typically free
01:47:19
in in the azure realm although you don't
01:47:21
want to count on that always you want to
01:47:22
look at the the billing model for a
01:47:24
service
01:47:25
egress traffic often costs money and
01:47:28
that's that can be a little bit
01:47:30
unpredictable so it's an area that you
01:47:32
want to be very uh
01:47:34
cognizant uh very aware of as you deploy
01:47:37
services if you're going to have a large
01:47:39
amount of egress traffic traffic
01:47:41
leaving your azure subscription you can
01:47:43
potentially rack up a lot of a lot of
01:47:45
cost there that won't be entirely
01:47:47
transparent to you ahead of time there
01:47:50
are a few different ways we can reduce
01:47:51
our cost in azure so
01:47:53
factors here include reserved instances
01:47:57
reserved capacity the hybrid use benefit
01:48:00
and spot pricing so let me break each of
01:48:02
these down for you so you're familiar
01:48:04
with how they work and where they apply
01:48:07
so reserved
01:48:08
instances allow us to reserve virtual
01:48:11
machines in advance and save up to 72
01:48:13
percent compared to pay-as-you-go
01:48:15
pricing
01:48:16
by selecting a one year or three year
01:48:18
commitment the longer
01:48:20
uh commitment will result in greater
01:48:23
savings but it's virtual machine
01:48:25
specific and
01:48:26
there is a scheme whereby if you you
01:48:29
can't
01:48:30
live up to your if you can't uh you see
01:48:32
out your one year or three year
01:48:33
commitments you can get some sort of
01:48:35
prorated refund there it's not a total
01:48:37
loss if you can't make it to the one or
01:48:39
three year
01:48:39
mark so reserved capacity
01:48:43
uh brings significant savings around
01:48:46
azure sql database cosmos db synapse
01:48:50
analytics and azure cash
01:48:53
for redis and this discount again
01:48:56
is product specific
01:49:00
so in these first cases we're talking
01:49:02
about how how planning
01:49:04
and reservation can help us save cost
01:49:09
reserved capacity allows us to more
01:49:12
easily
01:49:14
manage costs across both predictable and
01:49:18
variable workloads basically allowing us
01:49:20
to optimize our budgeting and our format
01:49:22
our forecasting but it also includes one
01:49:25
year and three-year
01:49:26
options just as we saw with reserved
01:49:29
instances it's just
01:49:31
reserved capacity applies to a different
01:49:34
type of workload right
01:49:37
okay the hybrid use benefit is a
01:49:39
licensing benefit this
01:49:40
allows us to reduce the cost of running
01:49:42
our workloads in the cloud
01:49:47
by leveraging some existing licensing so
01:49:50
essentially it lets
01:49:51
us use our on-premises software
01:49:54
assurance-enabled windows server and sql
01:49:56
server
01:49:57
licenses running on azure so
01:50:00
when you couple reserved instances
01:50:02
together with hybrid use benefits you
01:50:04
can save up to
01:50:05
80 percent on your virtual machine
01:50:09
workload so that's a really a
01:50:11
significant number
01:50:13
but it's windows server sql server red
01:50:15
hat and suse linux
01:50:16
where where the hybrid use benefit
01:50:19
applies
01:50:20
and then there is spot pricing so with
01:50:22
spot pricing you
01:50:24
can access unused azure compute capacity
01:50:27
at very deep discounts
01:50:29
up to 90 percent in fact
01:50:32
compared to the the pay as you go
01:50:33
pricing
01:50:36
and this applies to azure vms only the
01:50:38
thing to remember with spot pricing is
01:50:40
you're using unused capacity and when
01:50:42
you set up a vm
01:50:44
on spot pricing you have to define the
01:50:47
circumstances under which
01:50:49
your virtual machine workload can be
01:50:51
evicted
01:50:52
when microsoft needs to use that
01:50:55
unused capacity so so when you have
01:50:58
workloads that aren't mission critical
01:50:59
where you have some flexibility
01:51:02
in when it runs and if it's killed
01:51:04
occasionally
01:51:06
spot pricing allows you to save a lot of
01:51:08
money you're just not going to have
01:51:10
quite the predictability you have with a
01:51:12
typical production
01:51:13
workload so fairly new feature in the
01:51:16
life of azure
01:51:18
so we then have the pricing calculator
01:51:20
this is an interactive calculator that
01:51:22
allows you to estimate azure
01:51:24
resource costs um you can choose a
01:51:28
region
01:51:28
instance tiers you can you can turn the
01:51:31
knobs to configure the size and
01:51:34
the settings for your workload to match
01:51:36
your functionality and budgetary needs
01:51:38
so you can
01:51:39
can put a configuration in place and and
01:51:42
check the pricing and tweak it until you
01:51:44
get the pricing the the run rate the
01:51:46
pricing calculator is going to show you
01:51:47
what it will cost
01:51:49
uh what the estimate is for running that
01:51:51
workload
01:51:52
on a monthly and annual
01:51:56
basis but this the key is this is going
01:51:58
to give you pricing
01:51:59
before you deploy
01:52:04
and in fact let's just switch over to
01:52:06
the portal and we'll have a look
01:52:11
and the same would hold true of the
01:52:12
total cost of ownership calculator these
01:52:15
are before you deploy type tools so
01:52:17
let's just switch over to the azure
01:52:18
portal
01:52:19
so the pricing calculator is right here
01:52:21
so i can pick
01:52:22
the type of workload that i want to work
01:52:24
with
01:52:25
and so if i just click virtual machines
01:52:28
for example it's going to pull up a
01:52:30
calculator
01:52:31
and allow me to configure the settings
01:52:34
and see my monthly cost it's it's pretty
01:52:37
straightforward i can i can save my work
01:52:39
here
01:52:40
i can do this for a variety of workloads
01:52:43
to uh to help better estimate my cost
01:52:46
before i deploy
01:52:47
now the total cost of ownership
01:52:49
calculator is a little bit different so
01:52:51
it's less like a calculator so so when i
01:52:53
look at the pricing calculator it's very
01:52:55
much a calculator i'm picking
01:52:57
the region uh an operating system for my
01:53:01
vm scenario the tier
01:53:04
um the the os type the size of the
01:53:07
instance right and i can see here the
01:53:09
the settings the virtual machine and
01:53:11
then configure the
01:53:13
the hours you know typically we're
01:53:14
configuring the hours by the month and
01:53:16
then
01:53:17
you see here i can pick my reserved
01:53:20
instance if i like
01:53:21
i can set the hybrid benefit so i can
01:53:23
work in all of those money saving
01:53:25
opportunities in this
01:53:27
pricing calculator to to get down to a
01:53:30
fairly
01:53:31
realistic estimate of what i'm going to
01:53:33
be paying
01:53:34
the total cost of ownership calculator
01:53:36
is a little bit
01:53:38
different you see this is really helping
01:53:40
us estimate the cost savings we can
01:53:42
realize by
01:53:42
migrating workloads to azure so this is
01:53:45
a bit more of a survey where we can add
01:53:48
server workloads databases and storage
01:53:50
and networking
01:53:51
to get to an estimate
01:53:54
of of what we can save our total cost of
01:53:58
ownership
01:53:58
running in the cloud so so
01:54:02
i would suggest before the exam just lay
01:54:04
your hands on the tco calculator and the
01:54:06
pricing calculator as well
01:54:08
bearing in mind that both these
01:54:10
calculators are before you deploy type
01:54:12
resources right
01:54:13
as opposed to azure cost management
01:54:17
which is a suite of tools provided by
01:54:19
microsoft that help you analyze manage
01:54:21
and optimize the costs
01:54:23
of your workloads so this is more of an
01:54:27
after you deploy type tool
01:54:30
so complementary to
01:54:33
the the calculators in that respect
01:54:36
so we have guidance before we deploy and
01:54:39
then
01:54:40
guidance to help us optimize and
01:54:43
save after we deploy but make sure
01:54:46
you're familiar with that fact
01:54:48
uh for the exam so uh the next section
01:54:51
of
01:54:52
objective domain six is describe azure
01:54:54
slas and service life cycles we're in
01:54:56
the home stretch here this is the big
01:54:59
finish so we're going to to talk about
01:55:02
azure service level agreements actions
01:55:05
that can impact
01:55:06
an sla
01:55:11
we'll talk about the service life cycle
01:55:14
in azure
01:55:15
so the purpose of an azure sla it's
01:55:19
essentially to provide a clear
01:55:20
explanation of availability and
01:55:22
sometimes
01:55:22
performance of an azure service um
01:55:27
actions that can affect an sla well
01:55:30
failing to deploy a service
01:55:32
in a manner that meets sla requirements
01:55:34
for example
01:55:37
and really any azure service that you're
01:55:39
deploying will have
01:55:41
some specifications around that sla so
01:55:45
for example the
01:55:46
sla is not going to you're not going to
01:55:48
get a 99.9
01:55:50
uptime sla on an azure vm you deploy
01:55:53
with spot pricing because that could be
01:55:55
ejected at any time right
01:55:59
so you want to make sure that when
01:56:00
you're
01:56:02
performing your your cost estimates
01:56:04
before deployment
01:56:05
that you're also looking at your
01:56:07
availability needs and making sure that
01:56:09
as you're
01:56:09
working through the numbers to save
01:56:11
money that you're also bearing in mind
01:56:13
what your
01:56:14
availability requirements are for your
01:56:16
service so you find the right balance
01:56:18
of cost and availability
01:56:21
and in terms of the service life cycle
01:56:23
there are three
01:56:25
sort of service definitions you want to
01:56:26
be aware of so there's private
01:56:28
preview so this is a service that's open
01:56:32
only to to companies or users that are
01:56:34
invited or who have applied and have
01:56:36
been accepted to
01:56:37
preview a service so this allows you to
01:56:40
use
01:56:41
a service in advance of its full
01:56:44
release so it's really for evaluation
01:56:46
only you don't run
01:56:48
private preview services in production
01:56:51
period full stop there's public preview
01:56:54
so this
01:56:55
is open to the public but the preview
01:56:58
limitations apply which means we're not
01:57:00
running in
01:57:02
production and then when a service is
01:57:05
fully released approved for
01:57:08
production use it's considered
01:57:11
generally available and microsoft will
01:57:13
make an announcement of
01:57:15
general availability and to wrap things
01:57:18
up i have a surprise for you
01:57:20
i'm going to give you free access to
01:57:23
some practice questions for the az 900
01:57:26
exam so
01:57:26
really just to help you assess your
01:57:30
readiness for the exam one of these
01:57:32
is a 50 question practice test you don't
01:57:35
even have to
01:57:36
to log in to try you can just go to a
01:57:38
webpage kick it off
01:57:39
answer the questions get the answer
01:57:41
explanations and see
01:57:43
where you land and i also have a set of
01:57:46
three
01:57:47
practice exams available with a training
01:57:49
partner i have links to both
01:57:51
of these resources in the description
01:57:54
below this video
01:57:55
use them with my compliments and
01:57:58
incidentally when you go to that
01:57:59
training provider you can sign up for a
01:58:01
free trial of a few days
01:58:03
and access those questions without
01:58:06
any cost and that is it
01:58:09
for our az900
01:58:12
exam cram i hope you've enjoyed the
01:58:14
course best of luck on the exam
01:58:17
and until next time be well stay safe
01:58:21
and take care