What can an administrator use to restart a NetScaler MPX appliance and force a core dump for analysis?

• A. Use the NMI button on the back of the appliance.
• B. Connect to the USB port to issue a restart command.
• C. Use the reset button on the front of the appliance.
• D. Turn off the appliance using the power button

Answer: (A)

The action relies on triggering a non-maskable interrupt to force a crash path that writes a core dump for analysis. The NMI button on the back of the MPX appliance is designed specifically to do this, causing a controlled crash and core dump while rebooting, so engineers can study the exact state of the system at the moment of failure. Other methods may reboot the device but do not guarantee a diagnostic core dump (a USB restart, a front-reset, or simply powering off can fail to capture the crash data or cause data loss). Using the NMI button provides the needed crash information for thorough analysis.