In a Citrix ADC HA pair, which condition could indicate a failover issue due to interface health?

• A. HA monitoring is enabled on an interface of the Secondary Node that shows as ENABLED, DOWN.
• B. HA monitoring is enabled on a disabled interface
• C. INC mode enabled on Primary Node
• D. Heartbeats are seen on all interfaces

Answer: (A)

In an HA pair, interface health monitoring is used to detect if a path between the nodes or to the network is unusable. If an interface on the secondary node is configured for HA monitoring and it shows as ENABLED but the actual state is DOWN, that signals a real health issue on the monitored path. Because the interface that the cluster relies on is not functioning, the failover logic may trigger to keep traffic flowing, making this condition a clear indicator of a potential failover issue related to interface health.

The other scenarios don’t point to an active interface health problem: monitoring on a disabled interface isn’t monitoring anything real, so it doesn’t reflect a current health issue; a mode labeled INC on the primary doesn’t describe an interface health problem; and heartbeats on all interfaces indicate healthy communication, not a failure.