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Module 5: Memory Management

20232m

Variable partition memory allocation can lead to?
(i) external fragmentation
(ii) internal fragmentation
(iii) both (i) and (ii)
(iv) none of these

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Answer: (i) external fragmentation

Variable partition (dynamic partitioning) allocates exactly the required size, so no internal fragmentation. As processes complete, free holes of varying sizes are scattered. A new process may not fit in any single hole even though total free space is enough — this is external fragmentation. Compaction is used to coalesce holes.

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