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What is LRU?

Updated: 8/16/2019
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Long Runny Underside

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Q: What is LRU?
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What purpose does the referenced bit served in a demand paging system?

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If page references are 8 1 2 3 1 4 1 5 3 4 1 4 3 2 3 1 2 8 1 2and there are3 page frames then find out page faults using FIFO and LRU respectively?

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