010-160 Question #66: Real Exam Question with Answer & Explanation

The correct answer is D: id. The 'id' command displays the current user's UID, primary GID, and all supplementary group memberships. It is the standard tool for listing group membership on Linux.

Security and File Permissions

Question

Which command display the list of groups to which a user belongs?

Options

Awhoami
Blsgroup
Cwho
Did

Explanation

The 'id' command displays the current user's UID, primary GID, and all supplementary group memberships. It is the standard tool for listing group membership on Linux.

Common mistakes.

A. 'whoami' only prints the effective username of the current user and provides no group membership information.
B. 'lsgroup' is not a standard Linux command and does not exist on typical Linux distributions.
C. 'who' shows which users are currently logged into the system, not the group memberships of a specific user.

Concept tested. Linux id command user and group identity

Reference. https://man7.org/linux/man-pages/man1/id.1.html

Topics

#id command#user groups#user identity

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