AWS Certified Cloud Practitioner (CLF-C02) — Question 523

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 concept 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 the number of Amazon EC2 instances in response to changing demand, ensuring high availability while minimizing costs by terminating unused instances. AWS Compute Optimizer recommends optimal AWS resources but does not scale them automatically, while AWS Cost Explorer and the AWS Well-Architected Framework are used for cost analysis and architectural guidance, respectively, rather than dynamic resource scaling.