Monday 30 July 2012

CCNA ( Network Basic Question 15 )



Which protocol is used to send a destination network unknown message back to originating hosts?

A. TCP

B. ARP

C. ICMP

D. BootP







Answer & Explanation
Answer: Option C


Explanation:


ICMP (Internet Control Message Protocol )is the protocol at the Network layer that is used to send messages back to an originating router.

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