Question: Management is concerned that data uploaded from a microcomputer to the companys mainframe system in batch processing may be erroneous. Which of the following controls

Management is concerned that data uploaded from a microcomputer to the company’s mainframe system in batch processing may be erroneous. Which of the following controls would best address this issue?

a. The mainframe computer should be backed up on a regular basis.

b. Two persons should be present at the microcomputer when it is uploading data.

c. The mainframe computer should subject the data to the same edits and validation routines that online data entry would require.

d. The users should be required to review a random sample of processed data.

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