A system administrator notices that a server's clock is drifting and needs to be synchronized with a time server automatically. Which of the following commands should the administrator use to enable Network Time Protocol (NTP) service on the system?
The correct command to enable Network Time Protocol (NTP) synchronization using the timedatectl utility is timedatectl set-ntp true. This command enables and starts the first available network time synchronization service, such as systemd-timesyncd.service. The commands timedatectl enable ntp and timedatectl start ntp are incorrect as they mimic the syntax of the systemctl command; timedatectl does not have enable or start actions. The command timedatectl set-timezone NTP is also incorrect because the set-timezone action is used to define the system's local time zone (e.g., 'America/Chicago'), not to enable a service.
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CompTIA Linux+ XK0-006 (V8)
Services and User Management
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