Under which of the following circumstances would the command ping output the string (DUP!)?

Under which of the following circumstances would the command ping output the string (DUP!)?
A . When the ICMP packets are send to a broadcast address and multiple hosts respond.
B . When the host being sent ICMP packets is on a different network.
C . When the router responds to the ICMP packet in addition to the host receiving the ICMP packets.
D . When the host sending the ICMP packet is the same host as the one receiving the ICMP packets.

View Answer

Answer: A