NETWORK LAYER
INTRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Forward packets based on routers availability
|
|
|
used by router to pass along frames to next hop
|
|
|
used by routers to pass bits to next switch
|
|
|
used by routers to make best path determinations
|
Detailed explanation-1: -The main purpose of a routing table is to help routers make effective routing decisions. Whenever a packet is sent through a router to be forwarded to a host on another network, the router consults the routing table to find the IP address of the destination device and the best path to reach it.
Detailed explanation-2: -Routers can access IP packets carried to them in frames, so they can make forwarding decisions based on the IP destination address they find. The forwarding of packets by routers is referred to as packet switching.
Detailed explanation-3: -The default gateway route is always present in any routing table. It’s used when there is no entry for a specific network on the routing table. The default gateway usually connects to other remote networks. For example, in a home environment, the default gateway is connected to the Internet.