The answer is the AWS Schema Conversion Tool (SCT). AWS SCT is the correct choice because it is specifically designed to automate the conversion of database schemas from commercial engines like Oracle to open-source engines like PostgreSQL, handling Oracle-specific features such as hierarchical queries and stored procedures to minimize manual code changes. On the AWS Certified Database Specialty DBS-C01 exam, this question tests your understanding of the division of labor between AWS DMS, which handles ongoing data replication, and SCT, which handles schema transformation—a common trap is confusing the two. Remember that DMS moves the data, while SCT converts the schema. A useful memory tip: SCT stands for Schema Conversion Tool, so if the task involves changing the structure or code of the database, think SCT first.
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 financial services company is migrating a 2 TB Oracle database to Amazon Aurora PostgreSQL. The database uses Oracle-specific features like hierarchical queries and stored procedures. The company wants to minimize manual code changes. Which service should be used to automate schema conversion?
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
✓
AWS Schema Conversion Tool (SCT).
Option B is correct because AWS Schema Conversion Tool (SCT) is designed to convert database schemas from commercial engines like Oracle to open-source engines like PostgreSQL. Option A is wrong because DMS handles data migration but not schema conversion. Option C is wrong because S3 is storage, not conversion. Option D is wrong because Lambda is for serverless compute, 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
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
AWS Database Migration Service (DMS) with full load and ongoing replication.
Why it's wrong here
DMS migrates data but does not convert schema objects like stored procedures or hierarchical queries.
✓
AWS Schema Conversion Tool (SCT).
Why this is correct
SCT automates the conversion of Oracle schema objects to PostgreSQL-compatible format.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
AWS Storage Gateway to cache data on-premises and then sync to S3.
Why it's wrong here
Storage Gateway is for hybrid storage, not schema conversion.
✗
AWS Lambda to execute custom scripts for schema transformation.
Why it's wrong here
Lambda can run custom scripts but requires manual effort; SCT is purpose-built for automated schema conversion.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
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.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
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
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.
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.
Deployment and Migration — This question tests Deployment and Migration — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: AWS Schema Conversion Tool (SCT). — Option B is correct because AWS Schema Conversion Tool (SCT) is designed to convert database schemas from commercial engines like Oracle to open-source engines like PostgreSQL. Option A is wrong because DMS handles data migration but not schema conversion. Option C is wrong because S3 is storage, not conversion. Option D is wrong because Lambda is for serverless compute, not schema conversion.
What should I do if I get this DBS-C01 question wrong?
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.
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?
Standard ACLs match source addresses.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.