While using ping to test network connectivity, you receive a “Destination Unreachable” reply. Which of the following is the most correct interpretation of the result? A. The end host is offline. B. A...

While using ping to test network connectivity, you receive a “Destination Unreachable” reply. Which of the following is the most correct interpretation of the result?

A. The end host is offline.

B. A layer-1 problem exists between the two hosts.