A network administrator has purchased two devices that will act as failovers for each other. Which of the
following concepts does this BEST illustrate?

A.
Authentication

B.
Integrity

C.
Confidentiality

D.
Availability

Explanation:
Failover refers to the process of reconstructing a system or switching over to other systems when a failure is
detected. In the case of a server, the server switches to a redundant server when a fault is detected. This
strategy allows service to continue uninterrupted until the primary server can be restored. In the case of anetwork, this means processing switches to another network path in the event of a network failure in the
primary path. This means availability.