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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:
Second chance Algorithm When the page is chosen the reference bit is checked to see whether it has been referenced before. If that is the case after that it is given a second c
Determine the equation for the y and truth table for the circuits
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Second-Chance algorithm When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, thoug
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