DBS-C01 Deployment and Migration Practice Question
A company is migrating a 2 TB MySQL database to Amazon Aurora MySQL. They need to minimize downtime and ensure data consistency. Which approach should be used?
⚠ Common exam trap
Many candidates assume native MySQL replication (Option C) can be used directly with Aurora, but Aurora MySQL does not support standard MySQL replication as a replica; DMS is the AWS-native service designed for this purpose.
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
✓
Use AWS DMS with ongoing replication (CDC).
AWS DMS with ongoing replication (CDC) is the correct approach because it allows you to perform an initial full load of the 2 TB database while continuously capturing and applying changes from the source MySQL database. This minimizes downtime by keeping the target Aurora MySQL cluster nearly synchronized, and you only need to stop writes briefly during the final cutover to ensure data consistency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use AWS DMS with ongoing replication (CDC).
Why this is correct
DMS with CDC minimizes downtime by replicating changes.
- ✗
Use mysqldump to export and import into Aurora.
Why it's wrong here
This requires downtime and is not suitable for minimizing downtime.
- ✗
Establish AWS Direct Connect and use MySQL replication.
Why it's wrong here
Direct Connect is connectivity, not a migration service.
- ✗
Use AWS SCT to convert schema and data.
Why it's wrong here
SCT does not handle data migration.
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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.