Which of the following is a limitation of using fixed partitioning in memory…
2025
Which of the following is a limitation of using fixed partitioning in memory management?
- A.
It allows dynamic allocation of memory blocks based on program size.
- B.
It prevents external fragmentation entirely.
- C.
It can result in internal fragmentation due to fixed block sizes.
- D.
It supports variable-sized partitions for optimal memory utilization.
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Correct answer: C
Fixed partitioning divides memory into predetermined, fixed-size blocks. When a process is loaded into one of these partitions, any unused space within that block remains wasted because the partition size cannot be adjusted. This waste of memory inside allocated blocks is known as internal fragmentation, making Option C the correct answer.
Option A and D are incorrect because fixed partitioning does not allow dynamic or variable-sized allocations; the partitions are static. Option B is misleading because while fixed partitioning avoids external fragmentation (gaps between blocks), it introduces internal fragmentation, so it does not prevent all types of memory waste. Therefore, the primary limitation is the inevitable internal fragmentation caused by rigid block sizes.