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Computer Networks
Network Layer
Q
ICMP is primarily used for __________
AA. Error and diagnostic functions
BB. Addressing
CC. Forwarding
DD. Routing
Correct Answer:
A. A. Error and diagnostic functions
Explanation:
ICMP abbreviation for Internet Control Message Protocol is used by networking devices to send error messages and operational information indicating a host or router cannot be reached. ICMP operates over the IP packet to provide error reporting functionality as IP by itself cannot report errors.