Amazon RDS for MySQL is the correct choice because it directly addresses the need for a microservices database per service while minimizing operational overhead through its fully managed nature. By provisioning a separate RDS instance for each microservice, you achieve the database-per-service isolation pattern, where each service owns its schema and data, avoiding tight coupling. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of balancing managed services with architectural patterns—specifically, that RDS handles backups, patching, replication, and failover automatically, which is critical for reducing administrative burden in a microservices migration. A common trap is choosing Amazon Aurora, but the question explicitly specifies MySQL compatibility and minimizing overhead, making standard RDS for MySQL the pragmatic choice over Aurora’s higher cost and complexity. Memory tip: think “RDS per service” as “RDS per service” — each microservice gets its own managed database, just like each team gets its own responsibility.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company wants to migrate a monolithic application to AWS and redesign it using microservices. The application uses a MySQL database. The company wants to minimize operational overhead and enable each microservice to have its own database. Which AWS service should the company use to implement the database layer?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Amazon RDS for MySQL is the correct choice because it provides a managed MySQL database service that minimizes operational overhead through automated backups, patching, and scaling. Each microservice can have its own RDS instance, enabling database-per-service isolation while offloading administrative tasks like replication and failover to AWS.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 DynamoDB
Why it's wrong here
DynamoDB is a NoSQL database and does not support MySQL.
✓
Amazon RDS for MySQL
Why this is correct
Amazon RDS is a managed relational database service that supports MySQL, reducing operational overhead.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Amazon Redshift
Why it's wrong here
Redshift is a data warehouse, not suited for online transaction processing (OLTP) workloads.
✗
Amazon Aurora
Why it's wrong here
Aurora is MySQL-compatible but is a specific engine under RDS; the broader service answer is RDS.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Amazon Aurora with Amazon RDS for MySQL, but Aurora is a separate service with its own engine and pricing, and the question asks for a service to implement the database layer using MySQL, making RDS for MySQL the direct and simplest managed option.
Detailed technical explanation
How to think about this question
Amazon RDS for MySQL supports Multi-AZ deployments for high availability and read replicas for scaling read-heavy workloads, both managed automatically. Each microservice can use a separate RDS instance with its own security group and parameter group, enforcing strict isolation. Under the hood, RDS uses EBS volumes for storage, with automated snapshots and point-in-time recovery up to the last five minutes.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon RDS for MySQL — Amazon RDS for MySQL is the correct choice because it provides a managed MySQL database service that minimizes operational overhead through automated backups, patching, and scaling. Each microservice can have its own RDS instance, enabling database-per-service isolation while offloading administrative tasks like replication and failover to AWS.
What should I do if I get this SAP-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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