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When using counters to implement LRU, we replace the page with the ____________(a) smallest time value(b) largest time value(c) greatest size(d) none of the mentioned |
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Answer» Right choice is (a) smallest time value The explanation: Whenever a reference to a page is made, the contents of the clock register are copied into the time-of-use field in the page-table entry for that page. In this way, we always have the time of the last reference to each page. |
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