Question

Explain page replacement algorithms with example.

Answer 1

A Page replacement algorithm is an algorithm that decides which pages should be written to disk or file, when a new page needs to be allocated. Some of the algorithms used are: Not recently used: The algorithm wants to keep pages that have recently been used in memory. It has two bits it sets.

Answer 2

Primary data are the data which the researcher collects through various methods like interviews, surveys, questionnaires etc. The primary data have own advantages and disadvantages: (i) Advantages of primary data: ... Reliability of primary data is very high because these are collected by the concerned and reliable party.