Citrix ADC 13 Advanced Topics – Security, Management and Optimization — Question 1

Scenario: A Citrix Administrator configured Citrix ADC load balancing to send requests to one of three identical backend servers. Each server handles multiple protocols, and load balancing is set up in round-robin mode. The current load-balancing setup on the Citrix ADC is:
✑ One load-balancing vServer with one externally accessible VIP
✑ One service created for each protocol type
✑ One server entity for each backend resource
During business hours, the administrator wants to make changes to one backend server without affecting the other servers.
What is the most efficient way for the administrator to ensure that all traffic is routed away from the server without impeding responses from other resources?

Answer options

• A. Disable the backend service entity targeted for change.
• B. Disable the backend server entity targeted for change.
• C. Disable the load-balancing vServer.
• D. Unbind the correct server entity from the load-balancing vServer.

Correct answer: B

Explanation

The correct answer is B because disabling the specific backend server entity will prevent any traffic from being routed to it while allowing the other servers to continue handling requests. Option A would still allow traffic to the server via other services, while option C would disrupt all load balancing, affecting all servers. Option D only removes the server from the vServer but does not disable it, which means it could still receive traffic if re-bound.