FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Router. A router is a networking device typically used to interconnect LANs to form a wide area network (WAN) and as such is referred to as a WAN device. IP routers use IP addresses to determine where to forward packets.

Detailed explanation-2: -This is needed because LANs and WANs use different network protocols. Such routers are known as border routers. They serve as the outside connection of a LAN to a WAN, and they operate at the border of your network. Router are also used to divide internal networks into two or more subnetworks.

Detailed explanation-3: -WANs are often built using leased lines. At each end of the leased line, a router connects the LAN on one side with a second router within the LAN on the other.

Detailed explanation-4: -Router: A Router Provides internetworking between the LANs, and WAN access interface ports that are used to connect to the service provider network. These interfaces may be serial connections or other WAN interfaces.

Detailed explanation-5: -Typically, a router or other multifunction device is used to connect a LAN to a WAN.