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Question 359 of 1,730

Deployment and Migration →hardMultiple ChoiceObjective-mapped

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.

A
AWS Database Migration Service (DMS) with full load and ongoing replication.
Why wrong: DMS migrates data but does not convert schema objects like stored procedures or hierarchical queries.
B
AWS Schema Conversion Tool (SCT).
SCT automates the conversion of Oracle schema objects to PostgreSQL-compatible format.
C
AWS Storage Gateway to cache data on-premises and then sync to S3.
Why wrong: Storage Gateway is for hybrid storage, not schema conversion.
D
AWS Lambda to execute custom scripts for schema transformation.
Why wrong: Lambda can run custom scripts but requires manual effort; SCT is purpose-built for automated schema conversion.

Full breakdown with real-world context →

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

✓

AWS Schema Conversion Tool (SCT).

AWS Schema Conversion Tool (SCT) is specifically designed to convert database schemas from one engine to another, including Oracle to Amazon Aurora PostgreSQL. It automates the conversion of Oracle-specific features like hierarchical queries (CONNECT BY) and stored procedures into PostgreSQL-compatible syntax (e.g., recursive CTEs and PL/pgSQL), minimizing manual code changes. This makes SCT the correct choice for schema conversion, while AWS DMS handles data migration separately.

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.

✗
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
Read the scenario before looking for a memorised answer.
✗
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: answer the scenario, not the keyword

The trap here is that candidates often confuse AWS DMS (data migration) with schema conversion, assuming DMS can handle both data and schema transformation, but DMS only migrates data and requires a pre-converted target schema, which SCT provides.

Detailed technical explanation

How to think about this question

AWS SCT uses a built-in assessment report to identify unsupported Oracle features and automatically applies conversion rules, such as transforming Oracle's CONNECT BY PRIOR into PostgreSQL recursive Common Table Expressions (CTEs). For stored procedures, SCT converts Oracle PL/SQL to PostgreSQL PL/pgSQL, handling differences in exception handling, cursors, and package structures. In real-world migrations, SCT also generates conversion statistics and action items for manual remediation of complex features like Oracle-specific data types (e.g., BFILE) or advanced security policies.

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.

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: AWS Schema Conversion Tool (SCT). — AWS Schema Conversion Tool (SCT) is specifically designed to convert database schemas from one engine to another, including Oracle to Amazon Aurora PostgreSQL. It automates the conversion of Oracle-specific features like hierarchical queries (CONNECT BY) and stored procedures into PostgreSQL-compatible syntax (e.g., recursive CTEs and PL/pgSQL), minimizing manual code changes. This makes SCT the correct choice for schema conversion, while AWS DMS handles data migration separately.

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.

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?

Read the scenario before looking for a memorised answer.

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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.