Data-Structures
October 7, 2023Operating-Systems
October 7, 2023Operating-Systems
| Question 9 |
Consider a demand paging system with four page frames (initially empty) and LRU page replacement policy. For the following page reference string
7, 2, 7, 3, 2, 5,3, 4, 6, 7, 7,1, 5, 6,1
the page fault rate, defined as the ratio of number of page faults to the number of memory accesses (rounded off to one decimal place) is_________.
7, 2, 7, 3, 2, 5,3, 4, 6, 7, 7,1, 5, 6,1
the page fault rate, defined as the ratio of number of page faults to the number of memory accesses (rounded off to one decimal place) is_________.
| 0.60 |
Question 9 Explanation:
We have a total of 9 page faults using LRU page replacement algorithm with on demand paging. Out of 15 references, 9 page faults implies the page fault rate is 9/16 = 0.60.
Correct Answer: A
Question 9 Explanation:
We have a total of 9 page faults using LRU page replacement algorithm with on demand paging. Out of 15 references, 9 page faults implies the page fault rate is 9/16 = 0.60.
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