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21345 (a) Perform the access sequence with the replacement strategies as follows for the case of a cache capacity of four pages. (i) Least Recently

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21345 (a) Perform the access sequence with the replacement strategies as follows for the case of a cache capacity of four pages. (i) Least Recently Used (LRU) Page Replacement Algorithm (ii) Optimal Page Replacement Algorithm (10 marks) (b) Calculate the hit rate and the miss rate for the LRU and Optimal scenarios. (4 marks)

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