All mock tests are FREE till 31 December — register to save your progress
Unit 5 · System Software and Operating System Paper 2 CS · June 2024 (Cancelled Exam)

The sequence of steps for a page-replacement algorithm will be:
A. Find a frame that is not currently being used
B. Change the page table
C. Use the freed frame
D. No frame is free
E. Free a frame
Choose the correct answer from the options given below:

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: A. D, A, E, B, C

Explanation

When no frame is free, the OS chooses a victim frame not currently in use, frees it (writing it out if needed), updates the page tables, and uses the freed frame for the new page.

More System Software and Operating System questions