What is the access time of the disk cache

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1. A disk cache is introduced into a system and the access time reduces from 20 ms to 2 ms. What is the access time of the disk cache, given that the hit ratio is 70 per cent?

2. Work through all combinations of actions that can occur in the directory method described in Section 3.8, drawing a flow diagram and the values of the bits in the directories.

Reference no: EM131339569

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