This free CompTIA Linux+ System Management practice test covers systemd, filesystems, LVM, kernel modules, networking with ip/nmcli, storage, RAID, and the Linux boot process. Each question includes a detailed explanation with Linux command-line context — perfect for XK0-005 exam prep.
Each question below includes 4 answer options, the correct answer, and a detailed explanation. These are real questions from the FlashGenius CompTIA Linux+ XK0-005 question bank for the System Management domain (32% of the exam).
Which command would you use to list all currently loaded kernel modules in a Linux system?
Correct answer: A
Explanation: The 'lsmod' command is used to list all currently loaded kernel modules. 'modprobe' is used to add or remove modules from the kernel, 'insmod' is used to insert a module into the Linux kernel, and 'rmmod' is used to remove a module from the Linux kernel.
In a hybrid cloud environment, which tool would you primarily use to automate the deployment of containers?
Correct answer: C
Explanation: Kubernetes is a platform designed for automating the deployment, scaling, and operation of application containers across clusters of hosts. Ansible and Terraform are used for automation and infrastructure as code but are not specifically for container orchestration. Docker is used for building and running containers but not for orchestrating them across a cluster.
A user reports that they cannot access a shared directory on a Linux server. Which command would you use first to check the permissions of the directory?
Correct answer: A
Explanation: The 'ls -l' command lists directory contents in long format, showing file permissions, ownership, and other details. 'chmod' changes file permissions, 'chown' changes file ownership, and 'umask' sets default permissions for new files and directories.
You need to troubleshoot a network issue on an Ubuntu server. Which command will display the current IP routing table?
Correct answer: C
Explanation: The 'ip route show' command displays the current IP routing table on Linux systems. 'ifconfig' is used to configure network interfaces, 'netstat -r' can also show the routing table but is less preferred in modern systems, and 'route print' is a command used in Windows.
A Linux server is experiencing high CPU load due to a specific process. Which command can you use to change the priority of this process to reduce its impact?
Correct answer: B
Explanation: The 'renice' command is used to change the priority of an already running process. 'kill' is used to terminate processes, 'ps' is used to display information about active processes, and 'top' is used to monitor processes but does not change their priority.
In a containerized environment, which command would you use to view logs of a running Docker container?
Correct answer: B
Explanation: The 'docker logs' command is used to fetch the logs of a container. 'docker ps' lists running containers, 'docker exec' runs a command in a running container, and 'docker inspect' returns low-level information on Docker objects.
Combine these CompTIA Linux+ System Management practice questions with hands-on labs in a Linux VM (Ubuntu, Rocky, or Fedora). The XK0-005 exam emphasizes practical command-line work, so always test commands in a sandbox — that hands-on muscle memory is what separates passing and failing scores.
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