SAP-C02 Question 125
Select 3A company is planning to migrate its on-premises monolithic application to AWS. They want to adopt a microservices architecture to improve scalability and fault tolerance. The application processes sensitive customer data, and compliance requires that data is encrypted in transit and at rest. Additionally, the company expects unpredictable traffic spikes and needs to ensure cost-efficiency during low traffic periods. Which combination of AWS services and features should you recommend to meet these requirements?
- A
Amazon ECS with Fargate for containerized microservices
- B
Elastic Load Balancer with TLS termination for secure communication
- C
Amazon S3 for sensitive data storage with default encryption enabled
- D
Amazon DynamoDB with on-demand capacity mode for unpredictable workloads
- E
AWS Lambda with provisioned concurrency for handling traffic spikes
- F
Amazon RDS with Multi-AZ deployments for managed database storage
Show answer and explanation
Correct answers: A, B, D
Explanation
The correct solution leverages Amazon ECS with Fargate to adopt a microservices architecture without infrastructure management. ELB with TLS termination ensures secure communication for compliance, and DynamoDB with on-demand capacity mode handles unpredictable traffic effectively while minimizing costs. Other options, like S3 and RDS, are not as aligned with the specific requirements of this scenario.
- A. Correct.
Amazon ECS with Fargate is a serverless option for running containerized workloads, which aligns with microservices architecture and eliminates the need to manage underlying infrastructure.
- B. Correct.
An Elastic Load Balancer (ELB) with TLS termination ensures secure communication by encrypting data in transit, meeting compliance requirements.
- C. Incorrect.
While Amazon S3 supports encryption for data at rest, it is not ideal for sensitive, structured data in a microservices architecture. A database service like DynamoDB is better suited for this use case.
- D. Correct.
Amazon DynamoDB with on-demand capacity mode is a cost-effective solution for handling unpredictable traffic, as it automatically scales throughput capacity based on demand.
- E. Incorrect.
AWS Lambda with provisioned concurrency is effective for managing traffic spikes in serverless applications, but it is not necessary in this case since ECS with Fargate is already being used for the microservices.
- F. Incorrect.
Amazon RDS with Multi-AZ deployments provides a managed relational database with high availability, but this scenario favors DynamoDB's scalability and cost-efficiency for unpredictable workloads.