Which Windows utility allows a user to selectively enable or disable startup programs, manage system services, and alter boot parameters via a graphical panel? MCQ with Answer and Explanation

Question
Which Windows utility allows a user to selectively enable or disable startup programs, manage system services, and alter boot parameters via a graphical panel?
A. Registry Editor
B. Device Manager
C. System Configuration (msconfig)
D. Disk Cleanup
Answer: Option C
Solution (By JKSSB Mock Tests)
The MSConfig (System Configuration) utility allows users to troubleshoot startup anomalies, manage boot choices, and isolate services.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which scheduling algorithm assigns the CPU to processes strictly in the exact order they arrive in the ready queue?
A. Priority Scheduling
B. Round Robin (RR)
C. First-Come, First-Served (FCFS)
D. Shortest Job First (SJF)
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Correct Answer: Option C

Explanation:
First-Come, First-Served (FCFS) is a non-preemptive scheduling policy where the process that requests the CPU first receives it first.
This question belongs to: Computer Operating Systems
Question #2
Which Linux command is used to display the disk usage of files and directories?
A. ls -l
B. du
C. stat
D. df
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Correct Answer: Option B

Explanation:
du (disk usage) estimates file space usage; df shows file system disk space usage.
This question belongs to: Computer Operating Systems
Question #3
In a multiprocessing system, what is the term for the ability to run multiple threads simultaneously on different cores?
A. Multithreading
B. Concurrency
C. Parallelism
D. Hyperthreading
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Correct Answer: Option C

Explanation:
Parallelism refers to executing multiple threads at the exact same time on multiple cores; concurrency is about managing multiple tasks with possible overlap.
This question belongs to: Computer Operating Systems
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