Operating System: The optimal page replacement algorithm will select t

1.	Operating System: The optimal page replacement algorithm will select the page that
A.	has been used least number of times.
B.	has been used most number of times.
C.	has been used for the longest time in the past.
D.	will not be used for the longest time in future.
Answer» E.

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We have a process that has been allocated 3 page frames and initially none of the pages of the process are available in the memory. The following sequence of page references (reference string) is made by the process : 1, 2, 1, 3, 7, 4, 5, 6, 3, 1If Optimal Page Replacement policy is used,_______ page faults will occur for the above reference string.
We have a process that has been allocated 3 page frames and initially none of the pages of the process are available in the memory. The following sequence of page references (reference string) is made by the process : 1, 2, 1, 3, 7, 4, 5, 6, 3, 1How many page faults will occur for the above reference string with the Least Recently Used(LRU) Page Replacement Policy in comparison to an Optimal Page Replacement policy?
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Operating System: The optimal page replacement algorithm will select the page that

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