Which Linux command is used to view the contents of a file one page at a time? MCQ with Answer and Explanation

Question
Which Linux command is used to view the contents of a file one page at a time?
A. cat
B. more
C. head
D. less
Answer: Option D
Solution (By JKSSB Mock Tests)
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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Practice More Operating Systems Questions

Question #1
Which of the following is an example of a real-time operating system (RTOS)?
A. Windows 10
B. Android
C. Linux
D. VxWorks
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Correct Answer: Option D

Explanation:
VxWorks is a real-time OS used in embedded systems requiring deterministic response times; general-purpose OSes are not RTOS.
This question belongs to: Computer Operating Systems
Question #2
What type of file system structure records modifications to a storage drive in a dedicated log file before committing changes to track data corruption against crashes?
A. Journaling File System
B. Compressed Allocation Mapping
C. Volatile Ramdisk Layout
D. FAT32 File System
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Correct Answer: Option A

Explanation:
Journaling file systems (like NTFS or ext4) track pending file changes in a dedicated journal log, allowing rapid structural recovery in the event of an abrupt power failure.
This question belongs to: Computer Operating Systems
Question #3
Which of the following files acts as the default boot loader for modern Windows systems utilizing UEFI firmware?
A. grub.efi
B. bootmgr.efi
C. io.sys
D. NTLDR
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Correct Answer: Option B

Explanation:
Modern Windows operating systems on UEFI systems use bootmgr.efi as the primary boot manager, whereas older BIOS-based legacy systems used NTLDR or bootmgr.
This question belongs to: Computer Operating Systems
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