AWS Certified Cloud Practitioner — Question 514

Which of the following is a design principle of the reliability pillar of the AWS Well-Architected Framework?

Answer options

• A. Scale globally in minutes.
• B. Adopt a consumption model.
• C. Automatically recover from failure.
• D. Make frequent, small, reversible changes.

Correct answer: C

Explanation

Enabling automated recovery from system failures is a foundational design principle of the AWS Well-Architected Framework's reliability pillar, as it allows systems to self-heal based on defined thresholds. In contrast, adopting a consumption model is a cost optimization principle, while making frequent, small, reversible changes aligns with operational excellence. Deploying globally in minutes is a general benefit of AWS cloud computing rather than a specific reliability design principle.