Which Linux terminal command displays information detailing the underlying operating system kernel version and machine architecture metrics? MCQ with Answer and Explanation

Question
Which Linux terminal command displays information detailing the underlying operating system kernel version and machine architecture metrics?
A. who
B. uname -a
C. pwd
D. lsmod
Answer: Option B
Solution (By JKSSB Mock Tests)
The 'uname' command equipped with the '-a' flag outputs comprehensive platform details including kernel build tags and processor architecture.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What is the primary function of the '/etc' directory in Linux file systems?
A. To store temporary cache files.
B. To host user-level multimedia documents.
C. To contain system-wide text configuration files and startup scripts.
D. To store backup binary drivers.
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Correct Answer: Option C

Explanation:
The '/etc' directory houses core system-wide configuration files, user data databases, and startup configuration scripts for services.
This question belongs to: Computer Operating Systems
Question #2
Which Microsoft Windows command line utility is used to clear all previous text from the command prompt screen window?
A. clean
B. reset
C. clear
D. cls
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Correct Answer: Option D

Explanation:
The 'cls' command stands for clear screen and resets the visible text buffer of the Windows command prompt terminal environment.
This question belongs to: Computer Operating Systems
Question #3
What is the primary purpose of the 'Task Scheduler' in Windows?
A. To schedule system updates
B. To monitor system performance
C. To manage user accounts
D. To automatically run tasks at predefined times or events
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Correct Answer: Option D

Explanation:
Task Scheduler allows administrators to automate script execution, backups, and maintenance tasks.
This question belongs to: Computer Operating Systems
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