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Which file organization is allowed by a direct access storage device?

  • A.direct only
  • B.sequential and direct only
  • C.indexed and direct only
  • D.sequential, indexed and direct

Answer: D

Correct answer: sequential, indexed and direct

A direct access device can reach any block without reading what comes before it, so it supports direct organisation; and since it can also read blocks in order, it supports sequential and indexed organisation as well. A sequential device such as tape supports only the first of the three.

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