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  1. Consider the virtual page reference string 

    1, 2, 3, 2, 4, 1, 3, 2, 4, 1

    on a demand paged virtual memory system running on a computer system that has main memory size of 3 page frames which are initially empty. Let LRU, FIFO and OPTIMAL denote the number of page faults under the corresponding page replacement policy. Then

    (A) OPTIMAL < LRU < FIFO 

    (B) OPTIMAL < FIFO < LRU 

    (C) OPTIMAL = LRU 

    (D) OPTIMAL = FIFO 

asked Jul 2, 2016 in Operating Systems by CompleteGATE-AskUS (3,550 points) | 55 views

1 Answer

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  1. (B) OPTIMAL < FIFO < LRU

answered Jul 2, 2016 by ebeisaac (13,250 points)
selected Jul 2, 2016 by CompleteGATE-AskUS
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