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Question 104

Cache hit ratio is 0.95, cache access time 5 ns and main memory access time 100 ns.

Cache hit ratio is 0.95, cache access time 5 ns and main memory access time 100 ns. Using hierarchical (look-through) access, the average access time is:
  1. A9.75 ns
  2. B5.25 ns
  3. C14.75 ns
  4. D10 ns
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Correct answer: (D) 10 ns

Explanation

0.95 × 5 + 0.05 × (5 + 100) = 4.75 + 5.25 = 10 ns.

From DSSSB TGT Computer Science Full Mock Test 1

This is question 104 of DSSSB TGT Computer Science Full Mock Test 1. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.