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 wants to migrate its on-premises Oracle database to Amazon Aurora PostgreSQL. The company needs to convert the database schema and code from Oracle to PostgreSQL. Which AWS service should they use for schema conversion?
AWS DMS
Why wrong: DMS migrates data, not schema conversion.
AWS Glue
Why wrong: Glue is for ETL, not schema conversion.
AWS Schema Conversion Tool (SCT)
SCT converts Oracle schemas to PostgreSQL.
AWS Database Migration Service
Why wrong: Same as B.
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)
Option A is correct because AWS SCT (Schema Conversion Tool) is specifically designed to convert database schemas and code from one engine to another, including Oracle to PostgreSQL. Option B is wrong because AWS DMS focuses on data migration, not schema conversion. Option C is wrong because AWS Database Migration Service is for data migration, not conversion. Option D is wrong because AWS Glue is for ETL, not schema conversion.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
AWS DMS
Why it's wrong here
DMS migrates data, not schema conversion.
AWS Glue
Why it's wrong here
Glue is for ETL, not schema conversion.
AWS Schema Conversion Tool (SCT)
Why this is correct
SCT converts Oracle schemas to PostgreSQL.
Related concept
Standard ACLs match source addresses.
AWS Database Migration Service
Why it's wrong here
Same as B.
Common exam traps
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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. ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement. 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 ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
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FAQ
Deployment and Migration — This question tests Deployment and Migration — Standard ACLs match source addresses..
The correct answer is: AWS Schema Conversion Tool (SCT) — Option A is correct because AWS SCT (Schema Conversion Tool) is specifically designed to convert database schemas and code from one engine to another, including Oracle to PostgreSQL. Option B is wrong because AWS DMS focuses on data migration, not schema conversion. Option C is wrong because AWS Database Migration Service is for data migration, not conversion. Option D is wrong because AWS Glue is for ETL, not schema conversion.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DBS-C01 ACL questions on filtering logic and placement.
Standard ACLs match source addresses.
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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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