To deliver an arriving packet to a destination host on a subnet connected to a router,the router needs to know the destination host's ________ before the router can send the packet on to the destination host.
A)IP address
B)data link layer address
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

The router needs to know the destination host's IP address to route the packet towards it, but it also needs to know the destination host's data link layer address (e.g. MAC address) in order to forward the packet on the local network. Therefore, both options A and B are necessary for the router to deliver the packet to the destination host.

To Deliver an Arriving Packet to a Destination Host on a Subnet