Assuming that there are three frames available in main
memory, for the following string of page references, determine how
many page faults would be generated using the Optimal Page
Replacement Algorithm.
1,2,4,3,1,3,5,1,2,4,5,3
Total number of page fault = 7
Explanation:
Optimal Page Replacement Algorithm
An optimal page replacement algorithm will replace the page which will not be referred for the maximum duration in the future. It is impossible to implement because we can not see the future.
It provides the benchmark for another algorithm.
If a page is not found in the memory then page fault will occur.
The frame allocation table is given below:

Total number of page fault = 7
Assuming that there are three frames available in main memory, for the following string of page...
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