Certified Information Systems Auditor (CISA) — Question 625

Which of the following system conversion strategies provides the GREATEST redundancy?

Answer options

• A. Direct cutover
• B. Parallel run
• C. Phased approach
• D. Pilot study

Correct answer: B

Explanation

The correct answer is B, Parallel run, as it involves running both the old and new systems simultaneously for a period, allowing for comparison and ensuring that any discrepancies can be addressed. The other options, such as Direct cutover, Phased approach, and Pilot study, do not provide the same level of redundancy since they either transition all at once or limit the scope of implementation.