Querying an NTP server once | LinuC Level 1 102 Exam original practice question

1.09.1Basic

Query time.example.test once and show offset information.

Do not change the system clock.

Which command is appropriate?

Hint 1: Focus on clock layers

Separate the system clock, RTC, timezone rules, and NTP synchronization before comparing the commands or settings.

Hint 2: Key terms

Review the short definitions of system clocks, RTC, timezones, and NTP synchronization involved.

ntpdate -q: The query form that measures an NTP server without changing the local clock.
NTP offset: A measurement of the difference between a local clock and a reference time.
Query-only: A mode that obtains measurements without changing local clock state.
ntpdate: A legacy command that queries NTP and normally can adjust the system clock.

Detailed explanation

Incorrectntpdate time.example.test

Incorrect. Plain ntpdate may attempt to adjust the system clock.

Correctntpdate -q time.example.test

Correct. -q reports the query without changing the clock.

Incorrectntpq -w time.example.test

Incorrect. This is not the ntpq form for a one-shot query.

Incorrectdate -q time.example.test

Incorrect. date does not query NTP servers.

An example you can run in a temporary verification environment.

ntpdate --help 2>&1 | grep -E -- '-q' | head -n 1

query onlyを示すhelp行

Foundation review

The kernel-maintained time used by applications and timestamps.

The battery-backed hardware clock used to seed time during boot.

A process that compares a clock with remote time sources and corrects drift.

Question IDKL-102-1078

Environmentntpdate help / 外部通信なし

Last technical review2026-08-13

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