Question: Suppose R = 3, 2, 4, 3, 4, 2, 2, 3, 4, 5, 6, 7, 7, 6, 5, 4, 5, 6, 7, 2, 1 is

Suppose R = 3, 2, 4, 3, 4, 2, 2, 3, 4, 5, 6, 7, 7, 6, 5, 4, 5, 6, 7, 2, 1 is a page reference stream.

a) Given a page frame allocation of 3 and assuming the primary memory is initially unloaded, how many page faults will the given reference stream incur under Belady's optimal algorithm?

b) Given a page frame allocation of 3 and assuming the primary memory is initially unloaded, how many page faults will the given reference stream incur under LRU?

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