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Let S be the reference string and X, Y be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Let SR be the reverse of S, and X' and Y' be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Which of the following is true?
  • a)
    X' >= X and Y' >= Y
  • b)
    X' >= X and Y' =< Y
  • c)
    X' = X and Y' = YCorrect Answer
  • d)
    X' <= X and Y' >= Y
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Let S be the reference string and X, Y be the no. Of page fault occur ...
It is the property of Optimal and LRU page replacement that S and SR will have same number of page fault.
Also, FIFO suffer from Belady’s anomaly but LRU and Optimal do not suffer from belady’s anomaly.
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Let S be the reference string and X, Y be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Let SR be the reverse of S, and X' and Y' be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Which of the following is true?a)X' >= X and Y' >= Yb)X' >= X and Y' =< Yc)X' = X and Y' = YCorrect Answerd)X' <= X and Y' >= YCorrect answer is option 'C'. Can you explain this answer?
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Let S be the reference string and X, Y be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Let SR be the reverse of S, and X' and Y' be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Which of the following is true?a)X' >= X and Y' >= Yb)X' >= X and Y' =< Yc)X' = X and Y' = YCorrect Answerd)X' <= X and Y' >= YCorrect answer is option 'C'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Let S be the reference string and X, Y be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Let SR be the reverse of S, and X' and Y' be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Which of the following is true?a)X' >= X and Y' >= Yb)X' >= X and Y' =< Yc)X' = X and Y' = YCorrect Answerd)X' <= X and Y' >= YCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Let S be the reference string and X, Y be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Let SR be the reverse of S, and X' and Y' be the no. Of page fault occur using the optimal and LRU page replacement policies respectively. Which of the following is true?a)X' >= X and Y' >= Yb)X' >= X and Y' =< Yc)X' = X and Y' = YCorrect Answerd)X' <= X and Y' >= YCorrect answer is option 'C'. Can you explain this answer?.
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