When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is shorter than the IP packet,what happens?
A)The router fragments the packet.
B)The subnet fragments the packet.
C)Both the router and the subnet fragment the packet.
D)The network fragments the packet.

Question

Quizplus · Accepted Answer

When an IP packet reaches a router that wishes to send the packet on to a subnet whose MTU is shorter than the IP packet, the router fragments the packet. Fragmentation is the process of breaking up a packet into smaller pieces to fit within the maximum size limitations of the network, and it is the responsibility of the router to perform this operation. The receiving subnet does not fragment the packet, as it expects to receive packets that are already within its maximum size limitations.

When an IP Packet Reaches a Router That Wishes to Send