CompTIA Linux+ XK0-006 (V8) Practice Question

The correct command is useradd -m -s /bin/bash -c "John Doe" -G developers jdoe. Here is a breakdown of the options used:

• useradd is the low-level utility for creating a new user.
• -m or --create-home creates the user's home directory if it does not exist.
• -s or --shell specifies the user's login shell.
• -c or --comment adds a descriptive comment, typically the user's full name, to the password file.
• -G or --groups adds the user to a list of supplementary (or secondary) groups.
• jdoe is the login name for the new user.

The command useradd -s /bin/bash -c "John Doe" -g developers jdoe is incorrect because it uses the -g option. The -g option sets the user's initial or primary group, not a supplementary group. The command usermod -m -s /bin/bash -c "John Doe" -G developers jdoe is incorrect because usermod is used to modify an existing user account, not create a new one. The command groupadd -m -s /bin/bash -c "John Doe" jdoe is incorrect because groupadd is used to create a new group, not a new user, and it does not accept these options for user creation.