AWS Certified Cloud Practitioner — Question 807

A company deploys its application on Amazon EC2 instances. The application occasionally experiences sudden increases in demand. The company wants to ensure that its application can respond to changes in demand at the lowest possible cost.

Which AWS service or tool will meet these requirements?

Answer options

• A. AWS Auto Scaling
• B. AWS Compute Optimizer
• C. AWS Cost Explorer
• D. AWS Well-Architected Framework

Correct answer: A

Explanation

AWS Auto Scaling automatically adjusts Amazon EC2 capacity up or down in response to demand spikes, ensuring high availability while minimizing costs during low-traffic periods. AWS Compute Optimizer only offers sizing recommendations and does not actively scale resources, while AWS Cost Explorer is used for analyzing historical billing data. The AWS Well-Architected Framework provides architectural guidelines and best practices rather than a functional scaling mechanism.