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How many page faults will occur if Optimal Page replacement algorithm is used for the following reference string with three page frames? 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1

How many page faults will occur if Optimal Page replacement algorithm is used for the following reference string with three page frames? 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1 Correct Answer 9

Optimal Page replacement:
In this algorithm, pages are replaced which would not be used for the longest duration of time in the future.

7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2, 1, 2, 0, 1, 7, 0, 1

No. of hits = 11
No. of misses = 9

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Related Questions

Fact 1: Eyeglass frames cost between $35 and $350.
Fact 2: Some eyeglass frames are made of titanium.
Fact 3: Some eyeglass frames are made of plastic.

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I: Titanium eyeglass frames cost more than plastic frames.
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