In fault management, what is the role of a failover controller?

In fault management, what is the role of a failover controller?

• A. Diagnose faults in hardware.
• B. Coordinate data routing between channels.
• C. Coordinate switching to a healthy channel during failover.
• D. Provide encryption keys for secure communication.

Answer: (C)

The main idea is keeping a system available by using a backup path and switching to it when the primary path fails. A failover controller watches the health of the active channel and, once a fault is detected, directs the system to switch to a healthy backup channel. It handles selecting the best alternate path, updating routing as needed, and making the transition so data flow continues with as little interruption as possible. This role focuses on maintaining continuous operation through automatic transition, not on diagnosing hardware faults or provisioning encryption keys, which are separate functions.

The main idea is keeping a system available by using a backup path and switching to it when the primary path fails. A failover controller watches the health of the active channel and, once a fault is detected, directs the system to switch to a healthy backup channel. It handles selecting the best alternate path, updating routing as needed, and making the transition so data flow continues with as little interruption as possible. This role focuses on maintaining continuous operation through automatic transition, not on diagnosing hardware faults or provisioning encryption keys, which are separate functions.