SAP-C02 Practice Question: Accelerate Workload Migration and Modernization
A company is modernizing its monolithic application by breaking it into microservices. The application uses a shared MySQL database. The team wants to implement a database per microservice pattern. Which AWS service should be used to manage multiple databases efficiently?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Amazon RDS for MySQL with multiple DB instances
Amazon RDS for MySQL can manage multiple DB instances, each dedicated to a microservice, with managed backups, scaling, and maintenance. Option B (Amazon ElastiCache for Redis) is wrong because it is a caching layer, not a primary database. Option C (Amazon DynamoDB) is wrong because it is a NoSQL database, which may not suit all microservices, especially those requiring relational data. Option D (Amazon EFS) is wrong because it is a file storage service, not a database.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon RDS for MySQL with multiple DB instances
Why this is correct
Correct. Amazon RDS for MySQL allows creating multiple DB instances, each serving as a dedicated database for a microservice, with automated backups, scaling, and maintenance.
- ✗
Amazon ElastiCache for Redis
Why it's wrong here
Incorrect. Amazon ElastiCache is an in-memory caching service, not suitable as a primary relational database for microservices.
- ✗
Amazon DynamoDB
Why it's wrong here
Incorrect. Amazon DynamoDB is a NoSQL database; while it could be used, the question specifies a MySQL database per microservice, requiring a relational database like RDS for MySQL.
- ✗
Amazon EFS
Why it's wrong here
Incorrect. Amazon EFS is a file storage service, not a database.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAP-C02 exam.