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WAEC Data Processing 2019 Question 38

Question 38

File Organisation

Which of the following file organizations requires a primary key?

  1. A.Indexed file organization
  2. B.Random file organization
  3. C.Serial file organization
  4. D.Sequential file organization
Show the answer and explanation

Answer: A (Indexed file organization)

Explanation

An indexed file is built on a unique key field that the index points to.