What is causing the secondary state to be ‘Unknown’?

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’?
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.

View Answer

Answer: D

Explanation:

https://docs.citrix.com/en-us/citrix-adc/current-release/system/high-availability-introduction/troubleshooting-high-availability.html