The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms?
Difficulty: Hard
About this MCQ
This Hard Operating Systems MCQ checks one syllabus fact.
The question is: “The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms?”
The accepted answer is A. Paging. “The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms” is answered by Paging (option A). Option B (“Context switching”) does not match the stem; it is a near-miss used to catch incomplete recall of Paging. Option C (“Deadlock”) does not match the stem; it is a near-miss used to catch incomplete recall of Paging. Remaining alternatives (CPU scheduling) fall outside the same rule and should be eliminated once Paging 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. Paging ✓
- B. Context switching
Why not B: “Context switching” is not correct. The accepted answer is A. Paging. “The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms
- C. Deadlock
Why not C: “Deadlock” is not correct. The accepted answer is A. Paging. “The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms
- D. CPU scheduling
Why not D: “CPU scheduling” is not correct. The accepted answer is A. Paging. “The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms
Correct answer
A. Paging
Explanation
“The concept in which a memory management scheme that eliminates external fragmentation by dividing memory into fixed-size blocks called pages is best known as which of these terms” is answered by Paging (option A). Option B (“Context switching”) does not match the stem; it is a near-miss used to catch incomplete recall of Paging. Option C (“Deadlock”) does not match the stem; it is a near-miss used to catch incomplete recall of Paging. Remaining alternatives (CPU scheduling) fall outside the same rule and should be eliminated once Paging 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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