Question: Question 1: [3] a. Why is cache necessary? [1] b. Suppose the time for data to transfer from cache to processor is 0.02 us, and

 Question 1: [3] a. Why is cache necessary? [1] b. Suppose

Question 1: [3] a. Why is cache necessary? [1] b. Suppose the time for data to transfer from cache to processor is 0.02 us, and the time for data to transfer from RAM to cache is 0.5 us. If 85% of data resides in the cache, what is the average access time for data? [2]

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