XK0-005 Exam Dumps | A systems administrator changed the file permissions on the myfile file: $ sudo chmod g+w myfile $ ls

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Question 48

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Question 48/177

A systems administrator changed the file permissions on the myfile file:
$ sudo chmod g+w myfile
$ ls -l myfile
-rwxrwxr-x 1 admin editors C 2022-10-13 10:45 myfile
Then the administrator added an existing user test to the editors group:
$ sudo usermod -aG editors test
However, the user test is still unable to edit the file. Which of the following solutions will fix this issue?

A. The user test needs to log out and log back in before editing the myfile file.

B. The file is only writable by the root user, and the user test needs root permissions.

C. The group for the user test needs to be reloaded by running sudo source /etc/group.

D. In order to edit the file, additional permissions are required that the user test does not have.

Correct Answer: A

When a user is added to a group using usermod -aG, the changes do not take effect until the user logs out and logs back in.
Option A (Correct): Logging out and logging back in updates the user's active group membership.
Option B: Incorrect, as the file is writable by the editors group, not just root.
Option C: Running source /etc/group does not apply group changes to an active session.
Option D: Incorrect, since the user already belongs to the correct group, but the session needs updating.
Reference: CompTIA Linux+ XK0-005 Official Guide - Chapter on User and Group Management.

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