Citrix ADC 13 Administrator — Question 26

Scenario: A Citrix Administrator manages an environment that has a NetScaler high availability (HA) pair running on two MPX appliances. The administrator notices that the state of the Secondary NetScaler is Unknown and moves the Secondary NetScaler to a new switch as a result. Also, the administrator captured a packet trace on both NetScalers. Both sent traffic on secure port 3009 and were routing back and forth to each other.
What is causing the Secondary state to be Unknown?

Answer options

• A. The firewall is blocking communication between the switches.
• B. The administrator made both NetScalers Primary.
• C. The Secondary NetScaler CANNOT communicate in HA when moved to a new switch.
• D. The remote procedure call (RPC) nodes are NOT configured correctly.

Correct answer: A

Explanation

The correct answer is A because if a firewall is blocking communication between the switches, the Secondary NetScaler will not be able to maintain its HA state. Options B and C are incorrect as the scenario does not suggest both are set to Primary and moving to a new switch alone does not inherently prevent communication. Option D is also not applicable since the packet trace indicates traffic is being sent, suggesting RPC nodes are likely configured correctly.