108.1 Maintain System Time LPIC-1 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A Linux administrator is preparing a server for deployment in a data center. The server's BIOS clock is set to local time (CST, UTC-6), but the administrator wants the system to use UTC for the hardware clock to avoid issues with dual-boot and daylight saving time changes. The administrator has already set the system time correctly using the `date` command. Which command should be used to synchronize the hardware clock to the current system time in UTC?

   • Ahwclock --systohc --utc
   • Bdate --set --utc
   • Chwclock --hctosys --utc
   • Dtimedatectl set-local-rtc 0
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A server is not synchronizing its time. The administrator checks the status of `systemd-timesyncd` and sees it is active. The `timedatectl status` command shows `NTP service: active` but `System clock synchronized: no`. Which of the following is the most likely cause?

   • AThe `systemd-timesyncd` service is not enabled at boot.
   • BThe NTP servers configured in `/etc/systemd/timesyncd.conf` are unreachable.
   • CThe system timezone is set incorrectly.
   • DThe hardware clock is not set to UTC.
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   An administrator notices that a server's time is drifting by several seconds per day. The `chronyd` service is running, but the logs show frequent 'No time source' messages. The `/etc/chrony/chrony.conf` file contains only the line `pool 2.debian.pool.ntp.org iburst`. Which of the following is the most likely cause of the problem?

   • AThe system's hardware clock is broken and needs to be replaced.
   • BThe `iburst` option is causing chronyd to send too many requests and get rate-limited.
   • CThe `chronyd` service is not enabled to start at boot.
   • DThe server cannot reach the NTP pool servers due to a firewall or network issue.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   Which command displays the current system time in UTC?

   • Adate --utc
   • Bhwclock --show
   • Cclock --show
   • Dtime --utc
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   An administrator is setting up a new server that needs to synchronize time with an internal NTP server. The server will be used for a high-frequency trading application where time accuracy is critical. The administrator is considering using `ntpd` or `chronyd`. Which factor is most important when choosing between these two?

   • A`ntpd` is always more accurate than `chronyd`.
   • B`chronyd` is generally better at handling variable network latency and can maintain accurate time over less stable connections.
   • C`chronyd` cannot be used on servers that are not connected to the internet.
   • D`ntpd` is the only option that supports authentication with NTP servers.
   Reveal Solution Discussion Select an answer first