The answer is to modify the DMS replication task to change the migration type to 'full-load-and-cdc'. This is correct because after a full load completes and the task stops, the team needs to enable ongoing replication to capture and apply incremental changes made to the source database during the migration window. By switching to the full-load-and-cdc migration type, the task seamlessly transitions from the initial bulk copy to Change Data Capture (CDC), allowing it to replicate ongoing transactions without re-running the full load. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of DMS lifecycle management and the critical distinction between a one-time full load and continuous replication. A common trap is assuming you must start a new task or re-run the full load, but DMS allows you to modify an existing completed task to add CDC. Memory tip: think "Full Load first, then flip the CDC switch" — you never re-pour the foundation, you just turn on the tap.
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Network Topology
A team is migrating an on-premises database to Amazon RDS using AWS DMS. After the full load completed, the task stopped. The team needs to perform ongoing replication to minimize downtime. What change should the team make to the DMS task?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Modify the replication task to change the migration type to 'full-load-and-cdc'.
After a full load completes and the task stops, the team needs to enable ongoing replication to capture and apply changes made to the source database during the migration window. Modifying the DMS task to use the 'full-load-and-cdc' migration type allows the task to perform the initial full load and then seamlessly transition to Change Data Capture (CDC) to replicate incremental changes, minimizing downtime. This is the correct approach because DMS supports switching a completed full-load task to include CDC without re-running the full load.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Modify the replication task to change the migration type to 'full-load-and-cdc'.
Why this is correct
Changing to 'full-load-and-cdc' enables both full load and ongoing change data capture replication.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Restart the replication task with the same settings.
Why it's wrong here
Restarting a full-load task will re-run the full load, not enable ongoing replication.
✗
Create a new replication instance and start a new full-load task.
Why it's wrong here
This does not enable ongoing replication; it's just a new full load.
✗
Use AWS Schema Conversion Tool to convert the schema again.
Why it's wrong here
Schema conversion is not related to replication type.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may think restarting the task or creating a new instance will automatically enable CDC, but DMS requires explicitly modifying the migration type to include CDC after the full load completes.
Detailed technical explanation
How to think about this question
When a DMS task is initially configured as 'full-load' only, it stops after the full load completes. To enable CDC without re-running the full load, you can modify the task's migration type to 'full-load-and-cdc' and set the 'Stop task after full load completes' option to false. DMS then uses the source database's transaction logs (e.g., MySQL binlog, Oracle Redo Logs, SQL Server transaction logs) to capture changes from the point the full load started, ensuring data consistency. This approach is critical for minimizing downtime in large-scale migrations where re-running the full load is impractical.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Modify the replication task to change the migration type to 'full-load-and-cdc'. — After a full load completes and the task stops, the team needs to enable ongoing replication to capture and apply changes made to the source database during the migration window. Modifying the DMS task to use the 'full-load-and-cdc' migration type allows the task to perform the initial full load and then seamlessly transition to Change Data Capture (CDC) to replicate incremental changes, minimizing downtime. This is the correct approach because DMS supports switching a completed full-load task to include CDC without re-running the full load.
What should I do if I get this DBS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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