- A
AWS Glue
Why wrong: Glue is an ETL service, not specialized for schema conversion.
- B
AWS Database Migration Service (AWS DMS)
Why wrong: DMS migrates data but does not convert stored procedures.
- C
Amazon Redshift COPY command
Why wrong: COPY loads data from S3 into Redshift, not for schema conversion.
- D
AWS Schema Conversion Tool (AWS SCT)
SCT converts schema and code objects like stored procedures to target engine syntax.
Question 669 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 wants to migrate its Oracle data warehouse to Amazon Redshift. The source database is 10 TB and has many complex stored procedures. Which AWS service should be used primarily for converting the stored procedures to Amazon Redshift compatible code?
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 (AWS SCT)
AWS Schema Conversion Tool (AWS SCT) is the correct choice because it is specifically designed to convert database schemas and complex code objects, such as stored procedures, functions, and packages, from one database engine to another. For an Oracle-to-Amazon Redshift migration, AWS SCT can automatically translate Oracle PL/SQL stored procedures into Amazon Redshift compatible SQL (e.g., using PL/pgSQL or SQL functions), handling syntax differences and unsupported features. This makes it the primary tool for converting the 10 TB data warehouse's stored procedures, whereas other services focus on data movement or ETL, not schema and code conversion.
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 Glue
Why it's wrong here
Glue is an ETL service, not specialized for schema conversion.
- ✗
AWS Database Migration Service (AWS DMS)
Why it's wrong here
DMS migrates data but does not convert stored procedures.
- ✗
Amazon Redshift COPY command
Why it's wrong here
COPY loads data from S3 into Redshift, not for schema conversion.
- ✓
AWS Schema Conversion Tool (AWS SCT)
Why this is correct
SCT converts schema and code objects like stored procedures to target engine syntax.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS DMS (which moves data) with AWS SCT (which converts schema and code), leading them to choose DMS for stored procedure conversion when DMS cannot translate procedural logic at all.
Detailed technical explanation
How to think about this question
AWS SCT works by parsing the source database's DDL and PL/SQL code, then generating equivalent Redshift-compatible DDL and SQL code, often using a built-in assessment report to flag unsupported features (e.g., Oracle-specific hierarchical queries or REF CURSORs) that require manual remediation. Under the hood, SCT uses a rule-based transformation engine that maps Oracle data types (e.g., NUMBER to BIGINT or DECIMAL) and rewrites procedural logic into Redshift's SQL dialect, which lacks native procedural language support for complex loops and cursors. In real-world migrations, SCT can handle up to 90% of stored procedure conversion automatically, but complex nested packages or autonomous transactions may still need manual refactoring.
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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Deployment and Migration — study guide chapter
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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 (AWS SCT) — AWS Schema Conversion Tool (AWS SCT) is the correct choice because it is specifically designed to convert database schemas and complex code objects, such as stored procedures, functions, and packages, from one database engine to another. For an Oracle-to-Amazon Redshift migration, AWS SCT can automatically translate Oracle PL/SQL stored procedures into Amazon Redshift compatible SQL (e.g., using PL/pgSQL or SQL functions), handling syntax differences and unsupported features. This makes it the primary tool for converting the 10 TB data warehouse's stored procedures, whereas other services focus on data movement or ETL, not schema and code conversion.
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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