DBS-C01 Deployment and Migration Practice Question
A company wants to migrate a 1 TB MySQL database to Amazon Aurora MySQL with minimal downtime. The database has a high write load. Which TWO options are valid approaches? (Choose two.)
⚠ Common exam trap
The trap here is that candidates may overlook Option D as valid because they assume native replication is not supported between MySQL and Aurora MySQL, but Aurora MySQL fully supports MySQL native replication, making it a viable low-downtime migration approach alongside DMS.
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 full load and ongoing replication.
AWS DMS supports full load and ongoing change data capture (CDC) replication, which can migrate the 1 TB MySQL database to Aurora MySQL with minimal downtime by continuously applying changes from the source binary logs. This approach handles high write loads efficiently by using transactional replication to keep the target nearly synchronized until cutover.
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 full load and ongoing replication.
Why this is correct
DMS supports CDC for minimal downtime.
- ✗
Export to flat files, transfer via AWS Snowball, and import.
Why it's wrong here
Involves downtime for shipping.
- ✗
Perform a mysqldump and restore to Aurora.
Why it's wrong here
Requires significant downtime.
- ✓
Use MySQL native replication to replicate to Aurora MySQL.
Why this is correct
Native replication can be used with minimal downtime.
- ✗
Use AWS SCT to convert the schema and then use DMS.
Why it's wrong here
SCT is not needed for MySQL to Aurora MySQL.
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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.