wide Area Network
wide Area Network covers a large geographic area such as state, country or even whole of the world.
Hear's a list of some of the important ways that WANs are different from LANs:
Hear's a list of some of the important ways that WANs are different from LANs:
- WANs usually need a router port or port.
- WANs are usually slower.
- WANs span larger geographic areas and/or can link disparate locations.
- we can choose when and how long we connect to a WAN.A LAN is all or nothing our workstation is either connected permanently to it or not at all, although most of us have dedicated WAN links now.
- WANs can utilize either private or public data transport media such as phone lines.
we get the word internet from the term internetwork. An internetwork is a type of LAN and/or WAN that connects the bunch of networks.In an internetwork, hosts still use hardware addresses to communicate with other hosts on the LAN.However, they use logical addresses to communicate with hosts on a different LAN.
And routers are the devices that make this possible.Each connection into a router is a different logical networks. Figure demonstrates how routers are employed to create an internetwork and how they enable our LANs to access WAN resources.
The internet is a prime example of what's known as a distributed WAN an internetwork that's made up of a lot of interconnected computers located in a lot of different place.There's another kind of WAN, referred to as centralized,that's composed of a main, centrally located computer or location that remote computers and devices can connect to.
 |
| Wide Area Network |