Option (b) moves a page from memory to the backing store is the correct answer.
A page out operation moves a page from memory to the backing store.
Demand paging – what is it?
- A different approach is to merely load pages as they are required.
- Demand paging, sometimes known as this approach, is frequently applied in virtual memory systems.
- Pages are only loaded into demand-paged virtual memory when they are required for program execution.
What does it mean to page the page tables?
- The definition of each page is kept in a page table.
- The MMU pulls relevant pages into frames placed in physical memory for speedier processing when an active process demands data.
- The action is referred to as paging.
- Page tables are used by the MMU to convert virtual addresses to physical ones.
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