Certified Information Systems Auditor (CISA) — Question 232

An IS auditor finds that a system receives identical information from two different upstream sources, even though redundancy is not required. Which of the following would BEST enable the organization to avoid this type of inefficiency?

Answer options

• A. Enterprise architecture (EA)
• B. Normalized relational databases
• C. Centralized data warehouse
• D. Cyber architecture review

Correct answer: A

Explanation

The correct answer is A, as establishing an Enterprise Architecture (EA) can help align and optimize the data flow, reducing unnecessary redundancy. Options B and C focus on data management strategies that may not address the underlying redundancy issue, while D pertains to security and governance rather than efficiency.