DBS-C01 Deployment and Migration Practice Question
A company wants to deploy a MySQL database that automatically scales read capacity based on traffic without manual intervention. Which AWS database offering should they use?
⚠ Common exam trap
Candidates often confuse Multi-AZ deployments (which provide failover, not read scaling) with read replica auto scaling, or they incorrectly assume DynamoDB's auto scaling applies to MySQL workloads, when the question explicitly requires a MySQL database.
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 Aurora with Auto Scaling for read replicas
Amazon Aurora with Auto Scaling for read replicas is correct because it automatically adjusts the number of Aurora Replicas based on changes in read workload, scaling read capacity without manual intervention. Aurora's Auto Scaling monitors the average CPU utilization or connections of the reader fleet and adds or removes replicas to maintain a target metric, providing seamless read scaling for MySQL-compatible databases.
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 with auto scaling
Why it's wrong here
DynamoDB is NoSQL, not MySQL.
- ✗
Amazon RDS for MySQL with Multi-AZ deployment
Why it's wrong here
Multi-AZ provides failover, not read scaling.
- ✗
Amazon RDS for MySQL with a Single-AZ deployment
Why it's wrong here
Single-AZ does not provide read scaling; manual intervention needed.
- ✓
Amazon Aurora with Auto Scaling for read replicas
Why this is correct
Aurora Auto Scaling automatically adjusts the number of read replicas based on CPU or connections.
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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.