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DBMS helps achieve

  • A.Data independence
  • B.Centralized control of data
  • C.Control redundancy
  • D.All of above

Answer: D

Correct answer: All of above

All three are among the reasons for using a DBMS: data independence, so storage can change without rewriting applications; centralised control, so standards, security and backup are managed in one place; and controlled redundancy, so the same fact is not stored in several places and allowed to drift out of step.

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