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The optimal page replacement algorithm will select the page that
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- has not been used for the longest time in the past
- will not be used for the longest time in the future
- has been used least number of times
- has been used most number of times
- has not been used for the longest time in the past
Correct Option: B
Optimal page replacement algorithm assumes that the pages that will come in future are already known, so replacement of the page which will not be used in future occurs.
Hence (b) is correct option.
