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WAEC Data Processing 2018 Question 38

Question 38

File Organisation

One advantage of indexed sequential file organization is that

  1. A.index tables are small and can be searched quickly.
  2. B.it is cost effective.
  3. C.it is suitable for dynamically changing files.
  4. D.it requires less storage space.
Show the answer and explanation

Answer: A (index tables are small and can be searched quickly.)

Explanation

The small index lets the system find a record quickly and then read on in order.