Question

Under which of the following scenarios is page replacement algorithm required?

(a) When total memory exceeds physical memory

(b) To determine the number of frames for each process

(c) When paging and segmentation are to be used

(d) Execution of a process, not in memory

I have been asked this question by my school teacher while I was bunking the class.

My doubt stems from Page Replacement Algorithms in portion Page Replacement Algorithms of Data Structures & Algorithms II

Answer 1

The correct choice is (a) When total memory exceeds physical memory

Best explanation: An appropriate page replacement algorithm is required when the total memory requirements exceed the physical memory.