AWS Certified Cloud Practitioner (CLF-C02) — Question 490

Which design principle aligns with performance efficiency pillar of the AWS Well-Architected Framework?

Answer options

• A. Using serverless architectures
• B. Scaling horizontally
• C. Measuring the cost of workloads
• D. Using managed services

Correct answer: A

Explanation

Adopting serverless architectures is a specific design principle of the Performance Efficiency pillar, as it removes the operational overhead of managing physical servers and allows systems to scale automatically. Measuring workload costs aligns with the Cost Optimization pillar, while the other options are general best practices rather than specific design principles of this pillar.