engineering computer science MCQ #160

If a disk rotates at 7200 rpm, what is the average rotational latency?

engineering computer science MCQ #160

  1. Question 1

    Q1. If a disk rotates at 7200 rpm, what is the average rotational latency?

    • A) 4.17 ms
    • B) 8.33 ms
    • C) 2.08 ms
    • D) 16.67 ms

    Answer: 4.17 ms

    Explanation: Average rotational latency = 1 / (2 * rpm / 60) = 60 / (2 * 7200) = 60 / 14400 = 0.00417 minutes = 4.17 ms.