Question: Which of the following techniques reads records of an input file ahead of the time when they are needed by a process and holds them temporarily in the memory area?

Answer:

The purpose of buffering is to reduce or eliminate the wait for an IO operation to complete; the process faces wait only when required record does not already exist in the buffer.

MCQ: Which of the following techniques reads records of an input file ahead of the time when they are needed by a process and holds them temporarily in the memory area?

A. Buffering of records
B. Blocking of records
C. Buffering and blocking of records
D. None of the above.

Correct Answer: A. Buffering of records

Explanation:

The purpose of buffering is to reduce or eliminate the wait for an IO operation to complete; the process faces wait only when required record does not already exist in the buffer.