A WAN is a wide area network that extends over a large geographic area, interconnecting various local area networks (LANs).

What components make up a WAN?

WANs consist of computers for switching connected by high-speed leased channels, using protocols for routing data.

What are dedicated lines?

Dedicated lines are permanent connections between two points, often rented on a monthly basis.

What are the types of switched services in WANs?

There are circuit-switched services, similar to phone calls, and packet-switched communication services for data transmission.

What is the role of telephone companies in WANs?

Telephone companies often provide the communication channels for WANs, sometimes rented or billed according to usage.

What topologies are common in WANs?

Common topologies include star, ring, bus, and tree configurations.

What is the difference between private and public networks?

Private networks are built and maintained by organizations for internal use, while public networks are open to users through subscription.

What are the benefits of interconnecting networks across cities?

It helps companies keep information updated, especially in financial and accounting areas, and supports high security and performance.

How do WANs accommodate Internet access?

WANs can enable corporate network users to access the internet and share resources like web servers and email servers.

What are digital lines?

Digital lines are designed for digital data traffic, using digital service channels instead of modems.

REDES WAN

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Summary

TLDRWide Area Networks (WANs) cover extensive geographic areas, often connecting various Local Area Networks (LANs) across cities, countries, or continents using elements like transmission lines and switching equipment. WAN technology has evolved to include numerous topologies such as star, ring, bus, and tree. Communication can be conducted through dedicated or switched lines, with providers like telephone companies offering these services. WANs can be either public or private networks, serving diverse data transmission needs. They also facilitate internet access and intercity network links, crucial for corporate operations, offering benefits in updating information, especially in finance. The development of digital and analog lines enhances data traffic capabilities. Overall, WANs enable efficient data routing across large distances, ensuring secure and high-performance communications.

Takeaways

🌍 WANs cover wide geographic areas connecting LANs.
🔗 Components include transmission lines and switching equipment.
📡 Utilizes both dedicated and switched lines for data transfer.
🏢 Supports both public and private network configurations.
🌐 Facilitates internet access for corporate networks.
🌟 Common topologies: star, ring, bus, tree.
📞 Telephone companies often provide WAN channels.
🔐 Ensures secure, high-performance communication.
🔀 Enables intercity network links with high information update capabilities.
🔌 Incorporates both analog and digital line technologies.

Timeline

00:00:00 - 00:07:40
Wide area networks (WAN) extend over large geographical areas, connecting LANs across various locations. These networks traverse public spaces and typically use public telephone networks for transmission. WANs involve multiple dedicated machines, known as hops, which execute user applications and are connected via a communication subnet. This subnet handles message transmission between hops and includes transmission lines and switching elements. Transmission lines move bytes between machines, while switching elements connect multiple lines at once. WAN networks rely on switching computers, which help segregate user computers from the network by providing routing support and handling data packet assembly/disassembly. These computers ensure network operations remain efficient and reliable. WAN features include leased high-speed channels provided by telephone companies with specific costs and physical components like communication lines, which connect various points for data transmission. It also describes line switching classifications.

Mind Map

Faqs

What is a WAN?
A WAN is a wide area network that extends over a large geographic area, interconnecting various local area networks (LANs).
What components make up a WAN?
WANs consist of computers for switching connected by high-speed leased channels, using protocols for routing data.
What are dedicated lines?
Dedicated lines are permanent connections between two points, often rented on a monthly basis.
What are the types of switched services in WANs?
There are circuit-switched services, similar to phone calls, and packet-switched communication services for data transmission.
What is the role of telephone companies in WANs?
Telephone companies often provide the communication channels for WANs, sometimes rented or billed according to usage.
What topologies are common in WANs?
Common topologies include star, ring, bus, and tree configurations.
What is the difference between private and public networks?
Private networks are built and maintained by organizations for internal use, while public networks are open to users through subscription.
What are the benefits of interconnecting networks across cities?
It helps companies keep information updated, especially in financial and accounting areas, and supports high security and performance.
How do WANs accommodate Internet access?
WANs can enable corporate network users to access the internet and share resources like web servers and email servers.
What are digital lines?
Digital lines are designed for digital data traffic, using digital service channels instead of modems.