What is the function of the Windows 'chkdsk' command? MCQ with Answer and Explanation

Question
What is the function of the Windows 'chkdsk' command?
A. Defragments the hard disk
B. Checks the file system and disk for errors and repairs them
C. Cleans up temporary files
D. Converts FAT to NTFS
Answer: Option B
Solution (By JKSSB Mock Tests)
chkdsk (Check Disk) scans the file system and disk sectors for errors and attempts to fix them.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What is the main advantage of preemptive multitasking over cooperative multitasking?
A. It is simpler to implement
B. The OS can force CPU time allocation, preventing a process from monopolizing the CPU
C. Processes voluntarily yield CPU time
D. It requires less memory
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Correct Answer: Option B

Explanation:
Preemptive multitasking allows the OS to interrupt a process and allocate CPU to others, ensuring fairness; cooperative relies on processes to yield.
This question belongs to: Computer Operating Systems
Question #2
Which command in Linux is used to display the currently logged-in user accounts and terminal details?
A. id
B. uname
C. pwd
D. who
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Correct Answer: Option D

Explanation:
The 'who' command queries system accounting data to display information about users currently logged into the operating system session.
This question belongs to: Computer Operating Systems
Question #3
Which Windows terminal application replaces the older command prompt environment to provide advanced object-oriented scripting and automation features?
A. Telnet client
B. PowerShell
C. MS-DOS Prompt
D. Bash Shell
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Correct Answer: Option B

Explanation:
Windows PowerShell is an advanced task automation and configuration management framework consisting of a command-line shell and scripting language.
This question belongs to: Computer Operating Systems
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