Which process state indicates that a process is waiting for an event (like I/O completion)? MCQ with Answer and Explanation

Question
Which process state indicates that a process is waiting for an event (like I/O completion)?
A. Terminated
B. Running
C. Blocked/Waiting
D. Ready
Answer: Option C
Solution (By JKSSB Mock Tests)
A blocked/waiting process is unable to continue until a specific event occurs, such as I/O completion or a signal.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which of the following is a characteristic of a monolithic kernel?
A. All OS services run in kernel mode with high performance
B. Only the core services run in kernel mode, others in user mode
C. It is easier to extend
D. It is more stable than microkernel
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Correct Answer: Option A

Explanation:
Monolithic kernel includes all system services (file system, drivers, memory management) in kernel space, which can improve performance but reduce stability.
This question belongs to: Computer Operating Systems
Question #2
In Windows Operating Systems, what does the 'System Restore' utility do?
A. It rolls back system files, registry configurations, and driver installations to a previous safe state without affecting personal data.
B. It upgrades the processor clock speeds automatically.
C. It reformats the motherboard BIOS chip.
D. It deletes all user photos and media files permanently to save storage space.
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Correct Answer: Option A

Explanation:
System Restore creates system snapshots (restore points) allowing users to revert critical operational registry or OS files to fix configuration corruption.
This question belongs to: Computer Operating Systems
Question #3
What is the default command prompt interpreter application executable file in modern Windows?
A. command.com
B. terminal.sys
C. bash.exe
D. cmd.exe
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Correct Answer: Option D

Explanation:
The default command prompt interpreter application file for modern Windows systems is 'cmd.exe'.
This question belongs to: Computer Operating Systems
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