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Que. Consider the following page reference string :

1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6

Which of the following options, gives the correct number of page faults related to LRU, FIFO, and optimal page replacement algorithms respectively, assuming 05 page frames and all frames are initially empty ?
a. 10, 14, 8
b. 8, 10, 7
c. 7, 10, 8
d. 7, 10, 7
Answer:8, 10, 7
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