Citrix ADC 13 Advanced Topics – Security, Management and Optimization — Question 57

Scenario: A Citrix Administrator manages an environment that has a Citrix ADC high availability (HA) pair running on two MPX appliances. The administrator notices that the state of the secondary Citrix ADC is 'Unknown'.
What is causing the secondary state to be 'Unknown'?

Answer options

• A. The synchronization on the secondary appliance is disabled.
• B. TCP port 22 is disabled between the primary and secondary ADCs.
• C. The administrator made both Citrix ADCs primary.
• D. The remote procedure call (RPC) nodes are incorrectly configured.

Correct answer: D

Explanation

The correct answer is D because if the RPC nodes are not configured correctly, the secondary ADC cannot communicate properly with the primary ADC, leading to an 'Unknown' state. Options A and B are not directly related to the state being 'Unknown', as they pertain to synchronization and port access respectively. Option C is incorrect because Citrix ADCs cannot both be set to primary in a functioning HA configuration.