Which of the following is a file system used by macOS? MCQ with Answer and Explanation

Question
Which of the following is a file system used by macOS?
A. ext4
B. NTFS
C. FAT32
D. APFS
Answer: Option D
Solution (By JKSSB Mock Tests)
APFS (Apple File System) is the default on macOS; others are not native.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which Windows command-line utility provides detailed configuration information about the system, including OS version, processor type, and physical RAM stats?
A. ping
B. tasklist
C. ipconfig
D. systeminfo
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Correct Answer: Option D

Explanation:
The 'systeminfo' command line tool queries the local machine configuration and displays comprehensive diagnostic and configuration metadata.
This question belongs to: Computer Operating Systems
Question #2
Which Linux command is used to change the permissions of a file with symbolic notation?
A. chmod o-r file
B. All of the above
C. chmod u+x file
D. chmod g+w file
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Correct Answer: Option B

Explanation:
chmod accepts symbolic mode like u+x (add execute for owner), g+w (add write for group), o-r (remove read for others).
This question belongs to: Computer Operating Systems
Question #3
Which Linux command is used to view the contents of a file one page at a time?
A. less
B. cat
C. more
D. head
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Correct Answer: Option A

Explanation:
less allows forward and backward scrolling, more is older and only forward; cat dumps all content.
This question belongs to: Computer Operating Systems
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