Question: Consider the following page reference string 1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4,

Consider the following page reference string 1, 2, 3, 4, 5, 3, 4, 1, 6, 7, 8, 7, 8, 9, 7, 8, 9, 5, 4, 4, 5, 3. How many page faults would occur for the following page replacement algorithms? Assuming fourframesare allocated to the process andall frames are initially empty.a)FIFO Replacementb)LRU Replacementc)Optimal replacement

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