Scenario: A Citrix Administrator is configuring a Citrix ADC high availability (HA) pair. The administrator needs to ensure that one Citrix ADC is UP and primary at all times to guarantee that…

Question

Options

• ADisable HA fail-safe mode on the primary Citrix ADC only.
• BConfigure HA fail-safe mode on the primary Citrix ADC only.
• CDisable HA fail-safe mode on each Citrix ADC independently.
• DConfigure HA fail-safe mode on each Citrix ADC independently.

• A
  12% (5)
• B
  2% (1)
• C
  5% (2)
• D
  80% (33)

Explanation

D is correct because HA fail-safe mode must be configured on each node independently - when fail-safe mode is active, a node that fails its health checks will continue passing traffic rather than going out of service, ensuring business continuity even in a degraded state. Since either node can become primary at any time, both must have this setting enabled to guarantee the behavior persists after a failover.

Options A and C are wrong because disabling fail-safe mode does the opposite - it allows a node to stop handling traffic when health checks fail, which is exactly the failure scenario the question is trying to prevent.

Option B is wrong because configuring fail-safe mode on the primary node only leaves the secondary unprotected; if the secondary takes over as primary (due to failover), it won't have fail-safe mode enabled and could go dark under failure conditions.

Memory tip: Think "HA = Both Always" - in an HA pair, any configuration that governs how a node behaves under failure must exist on both nodes, because either one can be primary. If you only configure the current primary, you've created a silent gap that only surfaces during the worst possible moment.

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