Linux MCQs with answers Page - 162

Dear candidates you will find MCQ questions of Linux here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

Q. Which command shows real-time system processes and resource usage?

  • (A) top
  • (B) ps
  • (C) htop
  • (D) Both top and htop
💬 Discuss
✅ Correct Answer: (D) Both top and htop
Explanation: 'top' and 'htop' provide dynamic real-time process monitoring.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. How can you display the manual page for the 'ls' command?

  • (A) man ls
  • (B) help ls
  • (C) ls --help
  • (D) info ls
💬 Discuss
✅ Correct Answer: (A) man ls
Explanation: 'man ls' shows detailed manual documentation.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which command is used to copy files or directories?

  • (A) cp
  • (B) mv
  • (C) copy
  • (D) clone
💬 Discuss
✅ Correct Answer: (A) cp
Explanation: 'cp' copies files or directories.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which signal is sent by default when using the 'kill' command?

  • (A) SIGTERM
  • (B) SIGKILL
  • (C) SIGSTOP
  • (D) SIGINT
💬 Discuss
✅ Correct Answer: (A) SIGTERM
Explanation: SIGTERM (signal 15) requests process termination.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. What is the use of the 'alias' command?

  • (A) Creates shortcuts for commands
  • (B) Shows available commands
  • (C) Deletes commands
  • (D) Modifies system PATH
💬 Discuss
✅ Correct Answer: (A) Creates shortcuts for commands
Explanation: 'alias' defines or lists command shortcuts.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which directory contains system log files?

  • (A) /var/log
  • (B) /etc/log
  • (C) /usr/log
  • (D) /log
💬 Discuss
✅ Correct Answer: (A) /var/log
Explanation: System logs are stored in /var/log.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which command is used to check disk input/output performance?

  • (A) iostat
  • (B) iotop
  • (C) top
  • (D) vmstat
💬 Discuss
✅ Correct Answer: (A) iostat
Explanation: 'iostat' reports CPU and disk I/O statistics.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which command shows all user groups of the current user?

  • (A) groups
  • (B) id
  • (C) whoami
  • (D) groupmod
💬 Discuss
✅ Correct Answer: (A) groups
Explanation: 'groups' lists all groups current user belongs to.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. Which command is used to schedule recurring jobs in Linux?

  • (A) cron
  • (B) at
  • (C) batch
  • (D) systemd-timers
💬 Discuss
✅ Correct Answer: (A) cron
Explanation: 'cron' schedules repeated tasks based on a timetable.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:01 am in Linux

Q. What is the default port number for SSH service?

  • (A) 22
  • (B) 23
  • (C) 21
  • (D) 80
💬 Discuss
✅ Correct Answer: (A) 22
Explanation: SSH runs by default on port 22.

Published by Mr. Dubey ⭐ 111.42K Points at 08-Jun-2025 08:02 am in Linux

Programming Categories

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play