engineering computer science MCQ #118

If a disk has an average seek time of 5ms and rotates at 5400 rpm, what is the average access time?

engineering computer science MCQ #118

  1. Question 1

    Q1. If a disk has an average seek time of 5ms and rotates at 5400 rpm, what is the average access time?

    • A) 10.55ms
    • B) 11.11ms
    • C) 12ms
    • D) 13ms

    Answer: 11.11ms

    Explanation: Average rotational latency = 0.5 * (60 / 5400) = 5.55ms. Average access time = seek time + rotational latency = 5 + 5.55 = 10.55ms, closest answer is 11.11ms.