An administrator attempts a traceroute but receives a "Destination Unreadable" message. Which protocol is responsible for that message?
A.
RARP
B.
RUDP
C.
ICMP
D.
SNMP
Explanation:
his question is to examine the command ping.
The ping command is often used to check the network connectivity.
Ping sends an ICMP echo request to the destination and tells whether a corresponding ICMP echo reply message is received or not.
It should be “Destination Unreachable”, instead of “Destination Unreadable”.
The ICMP destination unreachable message is generated by a router (which is reachable) to inform the source host that the destination unicast address is unreachable.