CompTIA Linux+ (XK0-005) — Question 173

A systems administrator is tasked with changing the default shell of a system account in order to disable iterative logins. Which of the following is the BEST option for the administrator to use as the new shell?

Answer options

• A. /sbin/nologin
• B. /bin/sh
• C. /sbin/setenforce
• D. /bin/bash

Correct answer: A

Explanation

/sbin/nologin is the correct choice as it prevents users from logging in interactively, effectively disabling their ability to initiate a session. The other options, such as /bin/sh and /bin/bash, are valid shells that allow users to log in, while /sbin/setenforce is a command for changing SELinux modes and is not a shell.