- A
Use AWS Schema Conversion Tool (AWS SCT) to convert the schema and AWS DMS for data migration
Why wrong: Schema conversion is not needed since source and target are both SQL Server.
- B
Use AWS S3 to store the data and AWS Glue to transform and load into RDS
Why wrong: This is not a standard approach for database migration.
- C
Use AWS Database Migration Service (AWS DMS) with full load and ongoing replication
AWS DMS supports ongoing replication to minimize downtime.
- D
Use native SQL Server backup and restore to Amazon RDS
Why wrong: Backup and restore does not support ongoing replication; it requires downtime.
Question 805 of 1,730
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.
A company is migrating a 500 GB SQL Server database to Amazon RDS for SQL Server. The database has a large number of stored procedures and triggers. The migration must have minimal downtime. Which approach should be used?
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 Database Migration Service (AWS DMS) with full load and ongoing replication
Option C is correct because AWS DMS with full load and ongoing replication enables continuous change data capture (CDC) from the source SQL Server database to Amazon RDS for SQL Server, minimizing downtime by keeping the target synchronized until cutover. This approach handles the stored procedures and triggers natively since both source and target are SQL Server, avoiding schema conversion issues.
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.
- ✗
Use AWS Schema Conversion Tool (AWS SCT) to convert the schema and AWS DMS for data migration
Why it's wrong here
Schema conversion is not needed since source and target are both SQL Server.
- ✗
Use AWS S3 to store the data and AWS Glue to transform and load into RDS
Why it's wrong here
This is not a standard approach for database migration.
- ✓
Use AWS Database Migration Service (AWS DMS) with full load and ongoing replication
Why this is correct
AWS DMS supports ongoing replication to minimize downtime.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use native SQL Server backup and restore to Amazon RDS
Why it's wrong here
Backup and restore does not support ongoing replication; it requires downtime.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume native backup/restore (Option D) is the simplest and fastest method, but they overlook the requirement for minimal downtime, which demands ongoing replication rather than a single offline restore operation.
Detailed technical explanation
How to think about this question
AWS DMS CDC works by reading the source SQL Server transaction logs (using MS-Replication or MS-CDC) to capture insert, update, and delete operations in near real-time, applying them to the target RDS instance. The full load phase transfers the initial 500 GB snapshot, after which CDC catches up, allowing a brief cutover window measured in seconds. Stored procedures and triggers are migrated as part of the schema via AWS DMS's schema copy or manually, but since both engines are SQL Server, no conversion is needed.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
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Deployment and Migration — study guide chapter
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
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: Use AWS Database Migration Service (AWS DMS) with full load and ongoing replication — Option C is correct because AWS DMS with full load and ongoing replication enables continuous change data capture (CDC) from the source SQL Server database to Amazon RDS for SQL Server, minimizing downtime by keeping the target synchronized until cutover. This approach handles the stored procedures and triggers natively since both source and target are SQL Server, avoiding schema conversion issues.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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