AWS Certified Cloud Practitioner (CLF-C02) — Question 158

Which pillar of the AWS Well-Architected Framework refers to the ability of a system to recover from infrastructure or service disruptions and dynamically acquire computing resources to meet demand?

Answer options

• A. Security
• B. Reliability
• C. Performance efficiency
• D. Cost optimization

Correct answer: B

Explanation

The correct answer is B, Reliability, as it directly addresses a system's ability to recover from failures and adapt to resource demands. Options A (Security) and D (Cost optimization) focus on different aspects of system design, while C (Performance efficiency) pertains to optimizing resource use rather than recovery from disruptions.