1500 Questions | CompTIA Linux+ Certification 2026

Detailed Exam Domain Coverage

To earn your CompTIA Linux+ certification, you must demonstrate proficiency across several critical administrative and troubleshooting domains. This course is built to align perfectly with the official exam objectives:

• System Configuration and Management (25%): Mastering resource management (CPU, memory, disk), user/group administration, and implementing robust access control lists.

• Troubleshooting (29%): Deep diving into hardware issues, boot/startup failures, authentication glitches, and file system access errors.

• Installation and Setup (23%): Handling OS versions, installation media, storage configuration, and networking setups.

• Software and System Operation (23%): Managing software packages, system services, runlevels, and essential cryptography.

Course Description

I designed this practice test suite to be the ultimate final step in your journey toward becoming a certified Linux professional. With 1,500 original, high-quality questions, I focus on the "why" behind the command line. Passing the CompTIA Linux+ exam requires more than just memorizing flags; it requires the ability to troubleshoot under pressure and understand system architecture.

Every single question in this bank includes a comprehensive breakdown of the correct answer and, more importantly, a detailed analysis of why the distractors are wrong. This method ensures you aren't just practicing—you are learning.

Sample Practice Questions

• Question 1: A sysadmin needs to identify which process is consuming the most CPU in real-time. Which command should I use to see an interactive, updating list of system resources?

  • A. lsblk

  • B. top

  • C. df -h

  • D. fdisk -l

  • E. cat /etc/passwd

  • F. chmod 777

  • Correct Answer: B

  • Explanation:

    • B (Correct): The top command provides a dynamic, real-time view of running processes, sorted by CPU usage by default.

    • A (Incorrect): lsblk is used to list information about all available or the specified block devices, not CPU usage.

    • C (Incorrect): df -h shows the amount of disk space used and available on file systems in human-readable format.

    • D (Incorrect): fdisk -l lists partition tables for specified devices but does not monitor processes.

    • E (Incorrect): This command displays the contents of the user account file and has nothing to do with resource monitoring.

    • F (Incorrect): chmod is used to change file permissions, not to monitor system performance.

• Question 2: During a boot failure, I notice the system stops before the GUI loads. Which directory should I investigate to find the primary system logs on a modern systemd-based Linux distribution?

  • A. /bin

  • B. /root

  • C. /var/log

  • D. /etc/skel

  • E. /proc

  • F. /dev

  • Correct Answer: C

  • Explanation:

    • C (Correct): /var/log is the standard location for system logs, including messages, syslog, and journal data.

    • A (Incorrect): /bin contains essential user command binaries, not log files.

    • B (Incorrect): /root is the home directory for the root user and typically does not store system-wide logs.

    • D (Incorrect): /etc/skel contains default files used when a new user account is created.

    • E (Incorrect): /proc is a virtual filesystem providing process and kernel information, not persistent log storage.

    • F (Incorrect): /dev contains device files that allow the system to interact with hardware.

• Question 3: A user is unable to execute a script despite having 'read' permissions. Which command will allow me to grant 'execute' permissions to the file owner?

  • A. chown user:user script. sh

  • B. umask 022

  • C. chmod u+x script. sh

  • D. setenforce 0

  • E. touch script. sh

  • F. grep execute script. sh

  • Correct Answer: C

  • Explanation:

    • C (Correct): chmod u+x specifically adds the execute bit for the user (owner) of the file.

    • A (Incorrect): chown changes file ownership but does not modify the permission bits (rwx).

    • B (Incorrect): umask sets default permissions for newly created files, not existing ones.

    • D (Incorrect): setenforce 0 puts SELinux into permissive mode; while it affects access, it doesn't change file permissions.

    • E (Incorrect): touch creates an empty file or updates a timestamp; it doesn't change permissions.

    • F (Incorrect): grep is a text searching utility and has no administrative control over file bits.

• Welcome to the Exams Practice Tests Academy to help you prepare for your CompTIA Linux+ Certification.

• You can retake the exams as many times as you want

• This is a huge original question bank

• You get support from instructors if you have questions

• Each question has a detailed explanation

• Mobile-compatible with the Udemy app

• 30-days money-back guarantee if you're not satisfied

I hope that by now you're convinced! And there are a lot more questions inside the course.