AWS Certified Cloud Practitioner — Question 523

A company runs an application in the AWS Cloud. The levels of traffic to the application vary throughout the week. The company wants to increase the reliability of its application at all times, even during times of high traffic.

Which combination of steps will meet this requirement? (Choose two.)

Answer options

• A. Test recovery procedures.
• B. Purchase instances weekly based on the previous week's high traffic points.
• C. Handle software failures automatically.
• D. Scale the application vertically.
• E. Make all changes in the environment manually.

Correct answer: A, C

Explanation

Testing recovery procedures and automatically recovering from failure are core design principles of the AWS Well-Architected Framework's Reliability pillar. These practices ensure that systems can anticipate failures and self-heal without human intervention. Relying on manual changes, vertical scaling, or weekly manual instance purchases does not align with AWS reliability best practices.