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Question 11

Which of the following options states the correct storage - device hierarchy in terms of decreasing access time?

  1. AMagnetic tape, magnetic disk, cache, main memory
  2. BMagnetic disk, optical disk, main memory, register
  3. CMagnetic tape, magnetic disk, main memory, register
  4. DRegister, main memory, magnetic disk, magnetic tape
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Correct answer: (C) Magnetic tape, magnetic disk, main memory, register

Explanation

Decreasing access time means going from slowest to fastest: magnetic tape, magnetic disk, main memory, register. Option A wrongly puts cache before main memory.

From DSSSB TGT Computer Science Practice Set 2

This is question 11 of DSSSB TGT Computer Science Practice Set 2. 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.