Creating a group with a chosen GID | LinuC Level 1 102 Exam original practice question

1.08.1Basic

Create new group analysts with GID 3100.

Which command is appropriate?

Hint 1: Focus on account attributes

Separate account creation, home-directory handling, group membership, login identity, and password state before comparing the commands.

Hint 2: Key terms

Review the short definitions of account records, groups, home directories, shells, and password state involved.

groupadd -g: The command form that creates a group with a specified numeric GID.
groupmod -g: The form that changes the GID of an existing group.
useradd -g: The option that selects a new user's primary group.
GID: The numeric identifier used to represent a group.

Detailed explanation

Incorrectgroupadd -n 3100 analysts

Incorrect. groupadd -n is not the GID option.

Incorrectgroupmod -g 3100 analysts

Incorrect. groupmod changes an existing group.

Incorrectuseradd -g 3100 analysts

Incorrect. useradd creates a user, not a group.

Correctgroupadd -g 3100 analysts

Correct. It creates analysts with GID 3100.

An example you can run in a temporary verification environment.

groupadd --help | grep -E -- '-g,|--gid'

GID指定の説明行

Foundation review

Identity attributes such as a user ID, home directory, and login shell.

Primary and supplementary groups used during permission checks.

State and time limits that control password changes and account access.

Question IDKL-102-1024

Environmentshadow-utils groupadd help / 状態変更なし

Last technical review2026-08-13

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