A. A PING OF A HOST’S OWN IP ADDRESS DOES NOT TEST WHETHER THE LAN...
5.
A. A ping of a host’s own IP address does not test whether the LAN is working or not,
because the packet does not have to traverse the LAN. A ping that requires the packet
to go from PC1 to the default gateway (R1) proves the LAN works, at least between
PC1 and R1. The only answer that lists a command that causes a packet to need to cross
the LAN from PC1 to R1 (although that process fails) is the ping 10.1.1.1 command.