What is WAN. Wide Area Network in detail. CCNA

 A Wide Area Network (WAN) is a type of computer network that spans a large geographic area, typically covering cities, countries, or even continents. WANs are designed to allow computers and other devices to communicate with each other over long distances, connecting multiple Local Area Networks (LANs) and other networks to create a single, integrated network.

WANs are typically used by large organizations, such as corporations, government agencies, and educational institutions, to connect multiple sites or branches together. They are also used by Internet Service Providers (ISPs) to provide connectivity to customers in different regions.



One of the key features of a WAN is that it uses various technologies to extend the reach of a network beyond the physical limitations of a single LAN.

This is typically achieved through the use of dedicated leased lines, satellite links, and other communication technologies that allow data to be transmitted over long distances.

WANs can also be configured in a variety of ways, depending on the specific needs of the organization. Some common WAN configurations include point-to-point connections, where two devices are connected directly to each other; hub-and-spoke configurations, where multiple devices are connected to a central hub; and mesh configurations, where devices are connected to each other in a complex web of interconnected links.

Overall, WANs play an important role in enabling communication and data transfer between geographically dispersed locations, and are essential for organizations that need to collaborate and share information across multiple sites.


Devices used in WAN network :-

1. Router

2. Switch

3. PC or Laptop

4. Server

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