An organization is concerned about duplicate vendor payments on a complex system with a high volume of transactions. Which of the following would be MOST helpful to an IS auditor to determine whether duplicate vendor payments exist?
Correct Answer: A
Comprehensive and Detailed Step-by-Step Explanation:
To efficiently detectduplicate payments,data analyticsand automated checks are required due to thehigh volume of transactions.
* Option A (Correct):Computer-Assisted Audit Techniques (CAATs)allow auditors toautomatically scan large datasetsfor duplicate payments based oninvoice numbers, vendor names, and payment amounts.
* Option B (Incorrect):Stratified samplinggroups data into categories, which helps in analysis but does not directly detect duplicates.
* Option C (Incorrect):Statistical samplingis useful forextrapolating results, but it doesnot systematically findduplicate transactions.
* Option D (Incorrect):Process walk-throughsreview procedures but donot analyze transactions at scale.
Reference:ISACA CISA Review Manual -Domain 2: Governance and Management of IT- Covers CAATs, data analytics, and fraud detection techniques.