Solved Paper-III On Topic : Solved Paper-III December 2014

Que : 1 . A hierarchical memory system that uses cache memory has cache access time of 50 nano seconds, main memory access time of 300 nano seconds, 75% of memory requests are for read, hit ratio of 0.8 for read access and the write-through scheme is used. What will be the average access time of the system both for read and write requests ?

1. 157.5 n.sec.
2. 110 n.sec.
3. 75 n.sec.
4. 82.5 n.sec.
Please Select Ans Options .
Explanation

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