A host or router can send which of the following error message to indicate that the protocol defined in the IP header cannot be processed?
A)Code 2: Protocol Unreachable
B)Code 3:Port Unreachable
C)Code 4: Fragmentation Needed and Don't Fragment Was Set
D)Code 5: Source Route Failed

Question

Quizplus · Accepted Answer

Code 2: Protocol Unreachable is the error message sent by a host or router to indicate that the protocol defined in the IP header cannot be processed. This is part of ICMP error messages used for network diagnostics.

A Host or Router Can Send Which of the Following