AMU MCA Operating System Previous Year Questions (PYQs) – Page 3 of 3
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Showing 22 questions
Find number of page faults for FIFO (First In First Out) page replacement policy if only 3 pages can be loaded at time
Reference string: 5, 4, 3, 2, 1, 4, 3, 5, 4, 3, 2, 1, 5
1
2
3
4
Solution
Simulating FIFO with 3 frames:
5 F
5 4 F
5 4 3 F
4 3 2 F
3 2 1 F
2 1 4 F
1 4 3 F
4 3 5 F
3 5 4 F
5 4 3 F
4 3 2 F
3 2 1 F
2 1 5 F
Total page faults = 13
Which of these data types is used by operating system to manage recursion in Java/C/C++?
1
2
3
4
Solution
Recursion uses function call stack (LIFO).
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