What are two functions of the ICMP protocol? (Choose two)
A. to map IP addresses to Ethernet addresses
B. to map common names to network addresses
C. to forward SNMP alerts to management consoles
D. to generate an echo reply in response to a ping test
E. to send a host or pod unreachable message from a router
to the source of an undeliverable packet
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Hello Mr.Jitendera Kuamr Sinha, how is every thing going on? Thanks for your reply. Dear Friend if you can Explain it little bit deeper i will be realy thanks full. Wish you all the Best.
CCNA 
