A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called?
Difficulty: Hard
About this MCQ
This Hard Operating Systems MCQ checks one syllabus fact.
The question is: “A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called?”
The accepted answer is A. Deadlock. “A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called” is answered by Deadlock (option A). Option B (“CPU scheduling”) does not match the stem; it is a near-miss used to catch incomplete recall of Deadlock. Option C (“Paging”) does not match the stem; it is a near-miss used to catch incomplete recall of Deadlock. Remaining alternatives (Thread) fall outside the same rule and should be eliminated once Deadlock is identified. Operating Systems questions of this type reward precise definitions rather than approximate associations. Operating Systems recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
- A. Deadlock ✓
- B. CPU scheduling
Why not B: “CPU scheduling” is not correct. The accepted answer is A. Deadlock. “A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called” is answered by Deadlock (option A). Option B
- C. Paging
Why not C: “Paging” is not correct. The accepted answer is A. Deadlock. “A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called” is answered by Deadlock (option A). Option B
- D. Thread
Why not D: “Thread” is not correct. The accepted answer is A. Deadlock. “A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called” is answered by Deadlock (option A). Option B
Correct answer
A. Deadlock
Explanation
“A situation where two or more processes are blocked forever, each waiting for a resource held by another. What is this concept called” is answered by Deadlock (option A). Option B (“CPU scheduling”) does not match the stem; it is a near-miss used to catch incomplete recall of Deadlock. Option C (“Paging”) does not match the stem; it is a near-miss used to catch incomplete recall of Deadlock. Remaining alternatives (Thread) fall outside the same rule and should be eliminated once Deadlock is identified. Operating Systems questions of this type reward precise definitions rather than approximate associations. Operating Systems recall of this distinction is a regular item in FPSC, PPSC, NTS, and CSS papers.
Source: Operating Systems Official Reference Guide
Tags: computer science, operating systems, OS concepts, process management
Submitted by: MCQsHub Editorial
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