In Windows, the 'Device Manager' can be accessed by running which command? MCQ with Answer and Explanation

Question
In Windows, the 'Device Manager' can be accessed by running which command?
A. hdwwiz.cpl
B. devmgmt.msc
C. devmgmt
D. sysdm.cpl
Answer: Option B
Solution (By JKSSB Mock Tests)
devmgmt.msc opens Device Manager; hdwwiz.cpl also opens the Add Hardware wizard.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
What is the function of the Windows 'System Restore' feature?
A. To restore deleted files
B. To backup entire system image
C. To reinstall Windows
D. To restore system files and settings to a previous state without affecting personal files
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Correct Answer: Option D

Explanation:
System Restore uses restore points to revert system changes, useful for fixing issues caused by updates or software.
This question belongs to: Computer Operating Systems
Question #2
In Windows, the command 'systeminfo' displays:
A. Detailed system configuration including OS version, memory, and network
B. Disk usage
C. Only the OS version
D. List of installed updates
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Correct Answer: Option A

Explanation:
systeminfo provides a comprehensive summary of system hardware and software configuration.
This question belongs to: Computer Operating Systems
Question #3
In Linux, the 'at' command is used to:
A. List scheduled jobs
B. Schedule recurring jobs
C. Schedule a job to run once at a specified time
D. Run jobs immediately
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Correct Answer: Option C

Explanation:
at schedules one-time tasks; cron is for recurring jobs; atq lists pending at jobs.
This question belongs to: Computer Operating Systems
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