An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is received, what does this confirm?
A. The PC has connectivity up to Layer 5 of the OSI model.
B. The PC has the TCP/IP protocol stack correctly installed.
C. The PC has connectivity with a local host.
D. The PC has connectivity with a Layer 3 device.
E. The PC has a default gateway correctly configured.
Answer: B