Showing a service's journal | LPIC-1 102-500 Exam original practice question

108.2Standard

Display only journal entries associated with ssh.service.

Which command is appropriate?

Hint 1: Focus on the requirement

Identify what must change and what must remain unchanged. Then choose the command whose scope matches that requirement.

Hint 2: Check each command's role

Separate commands that display information, change state, remove data, or affect a child process.

journalctl -p ssh.service: Incorrect. -p filters priority.
journalctl -b ssh.service: Incorrect. -b filters boot.
journalctl -t ssh.service: Incorrect. -t filters a syslog identifier or tag.
journalctl -u ssh.service: Correct. -u ssh.service selects the service's entries.

Detailed explanation

Incorrectjournalctl -p ssh.service

Incorrect. -p filters priority.

Incorrectjournalctl -b ssh.service

Incorrect. -b filters boot.

Incorrectjournalctl -t ssh.service

Incorrect. -t filters a syslog identifier or tag.

Correctjournalctl -u ssh.service

Correct. -u ssh.service selects the service's entries.

An example you can run in a temporary verification environment.

journalctl --help 2>&1 | grep -E -- '--unit| -u' | head -n 1

-uまたは--unitのhelp行

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKP-108-744

Environmentjournalctl helpの読取のみ

Last technical review2026-08-13