A+ 1102 PM Review Day 6

What is the primary role of the Linux kernel?

• To provide a graphical interface for users.
• To manage communication between hardware and software.
• To store user profiles and settings.
• To enable multitasking for desktop environments.

Which of the following commands will display help for the ls command?

• man ls
• ls --help
• help ls
• Both A and B

What does the pwd command do?

• Prints the contents of a file.
• Changes the working directory.
• Displays the current working directory.
• Lists the contents of a directory.

What does the find command do?

• Searches and filters file content.
• Searches for files and directories based on criteria.
• Searches for files containing a specific string.
• Displays the current directory.

How do you rename a file named report.txt to final_report.txt in the same directory?

• cp report.txt final_report.txt
• mv report.txt final_report.txt
• rm report.txt final_report.txt
• mv report.txt final_report.txt /tmp

Which command is used to add a new user?

• usermod
• useradd
• passwd
• newgrp

Which command changes the permissions of a file in Linux?

• chmod
• chown
• chgrp
• chmodown

What does the apt update command do?

• Upgrades all installed packages to the latest version.
• Installs a new package from a repository.
• Refreshes the package database from configured repositories.
• Checks for system security vulnerabilities.

How can you list all processes owned by a specific user using the ps command?

• ps aux
• ps -u username
• ps -e
• ps -l username

Which command replaces ifconfig on most modern Linux distributions?

• nmcli
• ip
• netstat
• route