Question

What will be the output of the following code snippet implementing the Least Recently Used (LR

Q: Answer-What will be the output of the following code snippet implementing the Least Recently Used (LRU) pag...

In the LRU page replacement algorithm, when a page fault occurs and the page is not in the page frame, the algorithm replaces the least recently used page. In the provided code, the sequence of page requests is 7, 0, 1, 2, 0, 3, 0, 4, 2, 3 with a capacity of 4. The pages that cause faults are 7, 0, 1, 2, 3, and 4, leading to a total of 6 page faults throughout the execution. Why Other Options Are Wrong A 7 This option is incorrect as it counts one additional fault that does not occur in the given page sequence. B 5 This option is incorrect as it undercounts the number of faults that occur during the execution. C 8 This option is incorrect as it overcounts the faults only 6 pages lead to faults based on the implemented logic. E 4 This option is incorrect because it suggests that only four pages caused faults, which does not reflect the sequence provided.

U page replacement algorithm? def lru(pages, capacity): page_frame = [] page_faults = 0 for page in pages: if page not in page_frame: if len(page_frame) < capacity: page_frame.append(page) else: lru_page = min(page_frame, key=lambda p: pages.index(p)) page_frame.remove(lru_page) page_frame.append(page) page_faults += 1 return page_faults pages = [7, 0, 1, 2, 0, 3, 0, 4, 2, 3] capacity = 4 faults = lru(pages, capacity) print(faults)

A 7

B 5

C 8

D 6

E 4

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