Question

Consider the following page reference string 1 2 3 4 1 2 3 4 1 2 3 4 1 2 1 2 3 1. Which of the following statement are correct?

Answer 1

Consider the following page reference string 1 2 3 4 1 2 3 4 1 2 3 4 1 2 1 2 3 1. Which of the following statement are correct?

Explanation:

Consider the following page reference string 1 2 3 4 1 2 3 4 1 2 3 4 1 2 1 2 3 1. Which of the following statement are correct?

Answer: (B)

Explanation:

First In First Out (FIFO)

This is the most simple page replacement algorithm. In this particular algorithm, the operating system keeps track of all pages in the memory in a queue;  the oldest page is in the front of the queue. When a page needs to be replaced page in the front of the queue is selected for removal.