Western Governors University (WGU) ICSC3120 C952 Computer Architecture Practice Exam

A page is defined as a fixed-size block in virtual memory systems primarily to simplify memory allocation and management. By using fixed-size pages, the operating system can efficiently track memory usage, allocate memory space, and manage the loading and swapping of pages between physical memory and disk. This uniformity allows for easier implementation of data structures like page tables, which map virtual addresses to physical addresses. It eliminates the complexity of dealing with variable-sized memory segments, making the allocation and deallocation processes more straightforward and reducing fragmentation. In addition to ease of management, fixed-size pages help in speeding up performance because each page is a known size. This consistency aids the operating system in predicting how much physical memory will be required for a given number of pages and helps in optimizing the use of caching and buffering strategies, although that is not the primary reason the fixed size was established. The other options, while they may touch on valid aspects of memory management, do not correctly highlight the primary rationale behind the choice of fixed-size pages. For instance, ensuring optimal page retrieval speeds is a secondary result of using fixed-size pages but is not the foundational reason for their establishment. Similarly, the support for variable-sized applications and minimizing storage costs on disks do not serve as valid justifications for defining