DBS-C01 Deployment and Migration Practice Question
A company is migrating a 1 TB on-premises SQL Server database to Amazon RDS for SQL Server. The migration must be completed within 24 hours and with minimal downtime. Which TWO approaches should be used? (Choose 2)
⚠ Common exam trap
Many exam-takers confuse a full-load-only DMS task (Option E) with a full-load-plus-CDC task (Option C), assuming any DMS migration automatically minimizes downtime, but only CDC provides ongoing replication to reduce the cutover window.
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) allows you to perform a full load of the existing data and then continuously replicate changes from the source SQL Server database to Amazon RDS for SQL Server, minimizing downtime to just the final cutover window. This approach meets the 24-hour migration window and the requirement for minimal downtime by keeping the target database nearly synchronized with the source until you are ready to switch.
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 SSIS packages.
Why it's wrong here
SSIS is not integrated with DMS.
- ✗
Use native backup and restore to S3.
Why it's wrong here
Requires downtime.
- ✓
Use AWS DMS with ongoing replication (CDC).
Why this is correct
Near-zero downtime migration.
- ✓
Use AWS SCT to assess and convert the schema.
Why this is correct
Helps with schema conversion.
- ✗
Use AWS DMS full load only.
Why it's wrong here
Requires downtime for final sync.
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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.