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AWS Certified Developer - Associate · AWS
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A) Eliminated - Amazon EKS is designed for large-scale, containerized applications that require Kubernetes orchestration. For a simple proof of concept with small traffic, it is overkill and introduces unnecessary complexity and cost. C) Eliminated - ECS introduces additional operational overhead compared to a serverless solution like Lambda. D) Elastic Beanstalk is not designed for a lightweight serverless application; it requires provisioning and managing compute resources, which increases cost and complexity.
B is the correct answer.
This solution is cost-effective because AWS Lambda charges are based on the number of requests and the duration of code execution, making it ideal for applications with low to moderate traffic. Amazon API Gateway can efficiently manage the REST endpoint and offers built-in caching capabilities to reduce the number of requests to the backend Lambda function, further optimizing costs. This setup also leverages the serverless model, reducing the operational overhead and cost associated with provisioning and managing servers.