[Solved] Which memory management technique is best suited when a program requires variable-sized logical divisions with meaningful names? | Operating Systems

Operating Systems - Paging vs Segmentation - Address Translation

Which memory management technique is best suited when a program requires variable-sized logical divisions with meaningful names?

APaging, because it divides memory into fixed-size blocks simplifying allocation

BSegmentation, because it uses fixed-size segments to simplify address translation

CPaging, because it avoids external fragmentation by using variable-sized pages

DSegmentation, because it allows logical divisions like code, stack, and data segments

Step-by-Step Solution

Solution:

Step 1: Understand segmentation's logical division
Segmentation divides memory into variable-sized segments representing logical units like code or stack, which have meaningful names.
Step 2: Contrast with paging
Paging divides memory into fixed-size pages without logical meaning, so it doesn't support variable-sized logical divisions well.
Step 3: Evaluate options
Paging, because it divides memory into fixed-size blocks simplifying allocation is wrong because paging uses fixed-size blocks but doesn't support meaningful logical divisions. Paging, because it avoids external fragmentation by using variable-sized pages is incorrect as paging uses fixed-size pages, not variable-sized. Segmentation, because it uses fixed-size segments to simplify address translation is wrong because segmentation uses variable-sized segments, not fixed-size.
Final Answer:
Option D -> Option D
Quick Check:
Segmentation supports variable-sized logical units -> correct [OK]

Quick Trick: Segmentation maps logical units; paging uses fixed-size blocks [OK]

Common Mistakes:

MISTAKES

Trap Explanation:

PITFALL

Candidates often think paging supports logical divisions because of its simplicity, but it only manages fixed-size blocks without semantic meaning.

Interviewer Note:

CONTEXT

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Which memory management technique is best suited when a program requires variable-sized logical divisions with meaningful names?