Citrix Gateway 13 Administration — Question 31

Scenario: A Citrix Administrator has configured a NetScaler active-passive high availability (HA) pair. When the HA pair fails over, customers are unable to access the hosted websites. After some troubleshooting, the administrator found that the upstream router was NOT updating its ARP table.
What can the administrator configure to resolve this issue?

Answer options

• A. Independent Network Configuration (INC) mode
• B. Virtual MAC
• C. HA monitor
• D. Route Monitor

Correct answer: B

Explanation

The correct answer, Virtual MAC, allows the NetScaler to use a single MAC address for both nodes in the HA pair, ensuring that the upstream router can always route traffic correctly, even after a failover. The other options, such as Independent Network Configuration (INC) mode, HA monitor, and Route Monitor, do not directly address the ARP table issue with the upstream router.