- A
Use AWS SCT to convert the schema and export data to PostgreSQL-compatible format, then import.
Why wrong: SCT does not handle ongoing data migration.
- B
Use AWS Schema Conversion Tool (SCT) to convert the schema, then use AWS DMS to migrate the data.
SCT handles schema conversion, DMS handles data migration.
- C
Use AWS DMS with native SQL Server CDC to migrate directly to PostgreSQL.
Why wrong: DMS cannot automatically convert schema between different engines.
- D
Use Microsoft Data Migration Assistant to assess and migrate to PostgreSQL.
Why wrong: Data Migration Assistant is for SQL Server to SQL Server.
Question 330 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 needs to migrate a 3 TB Amazon RDS for SQL Server database to Amazon RDS for PostgreSQL. The migration must be automated and repeatable with minimal manual intervention. Which combination of services 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 Schema Conversion Tool (SCT) to convert the schema, then use AWS DMS to migrate the data.
Option B is correct because AWS Schema Conversion Tool (SCT) handles the schema conversion from SQL Server to PostgreSQL, which is necessary due to incompatible data types, stored procedures, and indexes. AWS Database Migration Service (DMS) then performs the continuous data migration with minimal downtime, supporting both full load and ongoing replication. This combination automates the migration process and makes it repeatable via AWS CloudFormation or DMS task templates.
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 SCT to convert the schema and export data to PostgreSQL-compatible format, then import.
Why it's wrong here
SCT does not handle ongoing data migration.
- ✓
Use AWS Schema Conversion Tool (SCT) to convert the schema, then use AWS DMS to migrate the data.
Why this is correct
SCT handles schema conversion, DMS handles data migration.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS DMS with native SQL Server CDC to migrate directly to PostgreSQL.
Why it's wrong here
DMS cannot automatically convert schema between different engines.
- ✗
Use Microsoft Data Migration Assistant to assess and migrate to PostgreSQL.
Why it's wrong here
Data Migration Assistant is for SQL Server to SQL Server.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume DMS alone can handle both schema conversion and data migration, but DMS does not perform schema transformation for heterogeneous migrations; schema conversion must be done separately with SCT before DMS can replicate the data.
Detailed technical explanation
How to think about this question
AWS SCT uses a project-based approach to assess source schema and generate equivalent PostgreSQL DDL, including handling of SQL Server-specific features like CLR assemblies, linked servers, and T-SQL functions by mapping them to PostgreSQL equivalents (e.g., using PL/pgSQL or extensions like pg_partman). DMS supports both full load and change data capture (CDC) using SQL Server transaction logs, enabling near-zero downtime migrations; however, CDC requires the source database to be in full recovery mode and the DMS task to have proper log reader permissions. In a real-world scenario, a 3 TB database may require DMS to use multiple parallel tables or LOB handling settings to avoid performance bottlenecks during the full load phase.
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.
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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 Schema Conversion Tool (SCT) to convert the schema, then use AWS DMS to migrate the data. — Option B is correct because AWS Schema Conversion Tool (SCT) handles the schema conversion from SQL Server to PostgreSQL, which is necessary due to incompatible data types, stored procedures, and indexes. AWS Database Migration Service (DMS) then performs the continuous data migration with minimal downtime, supporting both full load and ongoing replication. This combination automates the migration process and makes it repeatable via AWS CloudFormation or DMS task templates.
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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