DBS-C01 Deployment and Migration Practice Question
A company is deploying a new microservices application on Amazon ECS. Each microservice needs its own database. Which AWS database service should be used to minimize operational overhead?
⚠ Common exam trap
A common mix-up: candidates assume a relational database (like Aurora or RDS) is always the best choice for microservices, overlooking the operational simplicity and scalability of a fully managed NoSQL service like DynamoDB, which is specifically designed for high-traffic, schema-less, and serverless architectures.
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 DynamoDB
Amazon DynamoDB is a fully managed NoSQL database that provides single-digit millisecond latency at any scale, making it ideal for microservices that each require their own isolated database. It eliminates operational overhead by handling hardware provisioning, setup, configuration, replication, and patching automatically, with no servers to manage. DynamoDB also supports on-demand capacity mode, which scales automatically based on traffic, perfectly aligning with the dynamic nature of microservices on Amazon ECS.
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 this is correct
DynamoDB is fully managed, serverless, and suitable for microservices.
- ✗
Amazon Aurora
Why it's wrong here
Aurora is managed but still requires instance management.
- ✗
Amazon Redshift
Why it's wrong here
Redshift is for data warehousing, not for microservices databases.
- ✗
Amazon RDS for MySQL
Why it's wrong here
RDS requires instance provisioning and management.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DBS-C01 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 DBS-C01 exam.