Quick Answer
The answer is AWS Database Migration Service (DMS) and AWS Schema Conversion Tool (SCT). DMS is the correct choice for assessing source PostgreSQL compatibility for RDS migration because it can perform a premigration assessment that checks for unsupported data types, server settings, and other potential blockers, while SCT evaluates schema compatibility and automatically converts the database schema to match Amazon RDS for PostgreSQL. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your understanding of the distinct roles these two services play in migration readiness—DMS handles the data layer and compatibility checks, whereas SCT focuses on schema transformation. A common trap is confusing AWS Glue or CloudWatch for this task, but Glue is for ETL and CloudWatch for monitoring, not for assessing database compatibility. Memory tip: think of DMS as the “data mover and checker” and SCT as the “schema translator”—together they cover the full readiness assessment.
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 an on-premises PostgreSQL database to Amazon RDS for PostgreSQL. Which TWO AWS services can be used to assess the source database for compatibility and migration readiness?
Amazon Kinesis
Why wrong: Kinesis is for streaming data.
AWS Schema Conversion Tool (SCT)
SCT assesses and converts schema.
AWS Database Migration Service (DMS)
DMS can assess source database compatibility.
AWS Glue
Why wrong: Glue is for ETL, not for database compatibility.
Amazon CloudWatch
Why wrong: CloudWatch monitors metrics, not compatibility.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Schema Conversion Tool (SCT)
AWS DMS can assess source database compatibility and perform data migration. AWS SCT can assess schema compatibility and convert the schema. Option C (CloudWatch) is for monitoring. Option D (Kinesis) is for streaming. Option E (Glue) is for ETL.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon Kinesis
Why it's wrong here
Kinesis is for streaming data.
AWS Schema Conversion Tool (SCT)
Why this is correct
SCT assesses and converts schema.
Related concept
Static NAT maps one inside address to one outside address.
AWS Database Migration Service (DMS)
Why this is correct
DMS can assess source database compatibility.
Related concept
Static NAT maps one inside address to one outside address.
AWS Glue
Why it's wrong here
Glue is for ETL, not for database compatibility.
Amazon CloudWatch
Why it's wrong here
CloudWatch monitors metrics, not compatibility.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
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. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. 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
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
Deployment and Migration — study guide chapter
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FAQ
Deployment and Migration — This question tests Deployment and Migration — Static NAT maps one inside address to one outside address..
The correct answer is: AWS Schema Conversion Tool (SCT) — AWS DMS can assess source database compatibility and perform data migration. AWS SCT can assess schema compatibility and convert the schema. Option C (CloudWatch) is for monitoring. Option D (Kinesis) is for streaming. Option E (Glue) is for ETL.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DBS-C01 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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.
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