The CLI command on NSX Manager and NSX Edge that is used to change NTP settings is set ntp-server. This command allows the user to configure one or more NTP servers for time synchronization12. The other options are incorrect because they are not valid CLI commands for changing NTP settings. The get timezone and set timezone commands are used to display and configure the timezone of the system1. The get time-server command is used to display the current time server configuration1. There are no CLI commands for using RADIUS or BootP for NTP settings. References: NSX-T Command-Line Interface Reference, vSphere ESXi 7.0 U3 and later versions NTP configuration steps