Unlocking a password | LinuC Level 1 102 Exam original practice question

1.08.1Basic

Unlock guest01 after it was locked with usermod -L.

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.

usermod -L guest01: Incorrect. -L applies the lock.
usermod -u guest01: Incorrect. Lowercase -u changes the UID and needs a numeric argument.
usermod -U guest01: Correct. -U unlocks the password field.
usermod -l guest01: Incorrect. Lowercase -l changes the login name.

Detailed explanation

Incorrectusermod -L guest01

Incorrect. -L applies the lock.

Incorrectusermod -u guest01

Incorrect. Lowercase -u changes the UID and needs a numeric argument.

Correctusermod -U guest01

Correct. -U unlocks the password field.

Incorrectusermod -l guest01

Incorrect. Lowercase -l changes the login name.

An example you can run in a temporary verification environment.

usermod --help | grep -E -- '-U,|--unlock'

password unlockの説明行

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 IDKL-102-1023

Environmentshadow-utils usermod help / 状態変更なし

Last technical review2026-08-13