Creating a non-interactive system account | LPIC-1 102-500 Exam original practice question

107.1Standard

Create a system account for the reports service and prevent interactive login.

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.

useradd -m -s /bin/bash reports: Incorrect. It gives a regular home and interactive Bash.
useradd -u 0 -s /bin/bash reports: Incorrect. UID 0 grants root-level privileges and an interactive shell.
useradd -r -s /usr/sbin/nologin reports: Correct. -r creates a system account and nologin denies interactive login.
useradd -G sudo reports: Incorrect. A sudo-group membership grants administration and does not block login.

Detailed explanation

Incorrectuseradd -m -s /bin/bash reports

Incorrect. It gives a regular home and interactive Bash.

Incorrectuseradd -u 0 -s /bin/bash reports

Incorrect. UID 0 grants root-level privileges and an interactive shell.

Correctuseradd -r -s /usr/sbin/nologin reports

Correct. -r creates a system account and nologin denies interactive login.

Incorrectuseradd -G sudo reports

Incorrect. A sudo-group membership grants administration and does not block login.

An example you can run in a temporary verification environment.

useradd --help 2>&1 | grep -E -- '--system|--shell'

-r/--systemと-s/--shellの説明

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-107-683

Environmentshadow-utils useradd / help読取のみ

Last technical review2026-08-13