What Is a WAN (Wide Area Network) ?
Whereas a LAN (local area network) is a network that links computers, printers and other devices located in an office, a building or even a campus , a WAN (wide area network) is a system that extends for greater distances and is used to connect LANs (local area networks) together. To link LANs into a WAN, you can use private lines, such as the leased T1 connections used by many large companies, or public networks like the telephone network or the Internet. With a WAN in place, employees at the LANs in any of your offices, regardless of how geographically distant they may be, can freely exchange files and data with each other as if they were physically connected to one network. What Are the Key Components of a WAN? Basically, a wide area network (WAN) consists of three components. There are access routers, which are the gateway devices connected to the local area networks (LAN) . Each access router links a LAN to the WAN connection. There are the WAN connections, which are the actual co
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