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Q. Consider the following page-replacement algorithms. Rank the algorithms on a five-point scale from "bad" to "perfect" according to their page-fault rate. Detach those algorithms that suffer from Belady's anomaly from those that don't.
1 FIFO replacement
2 Optimal replacements
3 LRU replacements
4 Second-chance replacement
Answer:
Central to implementation of a modern memory management system is the page replacement algorithm. Modern virtual memory systems break memory up into pages and map (via a page table
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