Question

LRU page - replacement algorithm associates with each page the ______

a) time it was brought into memory
b) the time of that page's last use
c) page after and before it
d) All of these

Answer 1

b) the time of that page's last use .The LRU page-replacement algorithm is associated with the time of each page's last use, allowing it to replace the page that is least likely to be used in the near future.

Step-by-step explanation:

The LRU (Least Recently Used) page-replacement algorithm associates with each page the time of that page's last use. This means that the LRU algorithm tracks when a page was last accessed.

Whenever a page needs to be replaced, the LRU algorithm looks for the page that has been unused for the longest period. This strategy aims to replace the page that is least likely to be used soon, based on its past use pattern.

The LRU (Least Recently Used) page replacement algorithm associates with each page the time of that page's last use. It keeps track of when each page was last accessed and replaces the page that has been accessed least recently when a new page needs to be brought into memory.

This algorithm is commonly used in operating systems to manage memory efficiently.