In a system employing a paging scheme for memory management wasted space is due to _________ .
A) internal fragmentation
B) pages of different specified sizes
C) external fragmentation
D) frames of different specified sizes

Question

Quizplus · Accepted Answer

In a paging scheme, memory is divided into fixed-size blocks called pages (when referring to logical memory) and frames (when referring to physical memory). Internal fragmentation occurs because the last page of a process may not be fully utilized, but since pages and frames are of fixed size, external fragmentation (which occurs when free memory is split into small blocks and scattered) does not occur. Choices B and D are incorrect because paging schemes typically use pages and frames of uniform size, not different specified sizes.

In a System Employing a Paging Scheme for Memory Management