Certified Information Systems Auditor (CISA) — Question 779

A finance department has a multi-year project to upgrade the enterprise resource planning (ERP) system hosting the general ledger, and in year one, the system version upgrade will be applied. Which of the following should be the PRIMARY focus of the IS auditor reviewing the first year of the project?

Answer options

• A. Network performance testing
• B. User acceptance testing (UAT)
• C. Unit testing
• D. Regression testing

Correct answer: C

Explanation

The primary focus should be on Unit testing, as it verifies that individual components of the upgraded system function correctly before they are integrated. User acceptance testing (UAT) and regression testing are important but occur after unit testing, while network performance testing is not directly related to the software upgrade.