Operating Systems - Paging vs Segmentation - Address Translation
Which of the following statements about fragmentation in paging and segmentation is FALSE?
Which of the following statements about fragmentation in paging and segmentation is FALSE?
medium📚 Background Q7 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand fragmentation types
Internal fragmentation occurs when allocated memory is larger than requested; external fragmentation is free memory scattered in small blocks.Step 2: Analyze segmentation
Segments are variable-sized, so segmentation does not always cause internal fragmentation; it can cause external fragmentation.Step 3: Analyze paging
Paging uses fixed-size pages, eliminating external fragmentation but may cause internal fragmentation.Final Answer:
Option B -> Option BQuick Check:
Segmentation variable size -> no fixed internal fragmentation [OK]
Quick Trick: Segmentation variable size -> external fragmentation, not internal [OK]
Common Mistakes:
MISTAKES- Assuming segmentation causes internal fragmentation
- Confusing internal and external fragmentation
- Believing paging causes external fragmentation
Trap Explanation:
PITFALL- Option B looks correct because of 'always' but segmentation segments vary in size.
Interviewer Note:
CONTEXT- Tests knowledge of fragmentation differences between paging and segmentation.
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