AWS Certified Cloud Practitioner — Question 669

Which AWS compute service automatically scales resources up or down to meet application workload demands?

Answer options

• A. Amazon Simple Queue Service (Amazon SQS)
• B. Amazon EC2
• C. Amazon Aurora
• D. AWS Lambda

Correct answer: D

Explanation

AWS Lambda is a serverless compute service that automatically scales by running code in response to each trigger, seamlessly managing the underlying compute resources. While Amazon EC2 can scale, it requires manual configuration of Auto Scaling groups, and Amazon Aurora and Amazon SQS are database and messaging services rather than compute services.