AWS Certified Cloud Practitioner — Question 862

A company is designing its AWS workloads so that components can be updated regularly and so that changes can be made in small, reversible increments.
Which pillar of the AWS Well-Architected Framework does this design support?

Answer options

• A. Security
• B. Performance efficiency
• C. Operational excellence
• D. Reliability

Correct answer: C

Explanation

Making frequent, small, and reversible changes is a core design principle of the Operational Excellence pillar, which focuses on running and monitoring systems to deliver business value and continually improving processes. While other pillars like Security, Performance Efficiency, and Reliability are critical to overall architecture, they do not primarily govern the operational practices of incremental software and infrastructure deployment.