Which CLI command adds the NTP server 192.168.55.54 to a NetScaler appliance?

• A. Add ntp server 192.168.55.54
• B. Add server ntp 192.168.55.54
• C. Add servicegroup NTP UDP
• D. Add service NTP 192.168.55.54 UDP 123

Answer: (A)

Configuring time on a Citrix ADC uses an NTP server object. The correct command to add an NTP server is add ntp server 192.168.55.54. This follows the syntax for creating an NTP server entry: the resource type is ntp server and the IP address is supplied directly. NTP uses UDP port 123 by default, but you don’t specify the port in this command—the port is inherent to the NTP protocol.

The other options don’t fit because they either try to create generic server or service objects rather than an NTP server, which is why they won’t configure the appliance’s time sync. After adding, you can verify the configuration with commands that display NTP settings or the list of configured NTP servers.