AWS Certified Solutions Architect - Associate
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A solutions architect is designing a REST API in Amazon API Gateway for a cash payback service. The application requires 1 GB of memory and 2 GB of storage for its computation resources. The application will require that the data is in a relational format.
Which additional combination of AWS services will meet these requirements with the LEAST administrative effort? (Choose two.)
Other
Community
UAnonymous
A
Amazon EC2
B
AWS Lambda
C
Amazon RDS
D
Amazon DynamoDB
E
Amazon Elastic Kubernetes Services (Amazon EKS)
Explanation:
Explanation
Correct Answers: B (AWS Lambda) and C (Amazon RDS)
Why AWS Lambda?
- Least Administrative Effort: AWS Lambda is a serverless compute service that automatically manages infrastructure, scaling, and patching. This aligns with the requirement for "LEAST administrative effort."
- Memory Requirements: Lambda supports up to 10 GB of memory, easily meeting the 1 GB requirement.
- API Gateway Integration: Lambda integrates seamlessly with Amazon API Gateway for REST APIs.
- Storage: While Lambda has ephemeral storage limits, the 2 GB storage requirement likely refers to the database layer, not compute storage.
Why Amazon RDS?
- Relational Data Format: The application explicitly requires "data is in a relational format." Amazon RDS is AWS's managed relational database service.
- Least Administrative Effort: RDS handles database administration tasks like backups, patching, and scaling, reducing administrative overhead.
- Storage Requirements: RDS can easily accommodate the 2 GB storage requirement.
Why NOT the other options?
- A. Amazon EC2: Requires significant administrative effort for provisioning, scaling, patching, and maintenance.
- D. Amazon DynamoDB: This is a NoSQL database, not relational, so it doesn't meet the relational format requirement.
- E. Amazon EKS: Kubernetes requires substantial administrative effort for cluster management, scaling, and maintenance.
Architecture Overview
- API Gateway → AWS Lambda (compute layer with 1GB memory)
- AWS Lambda → Amazon RDS (relational database with 2GB+ storage)
This serverless architecture minimizes operational overhead while meeting all technical requirements.
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