DBS-C01 Workload-Specific Database Design Practice Question
A company is migrating an on-premises Oracle database to Amazon Aurora PostgreSQL. The database is used for a financial application that requires complex joins and transactions. Which migration strategy is MOST appropriate?
⚠ Common exam trap
It's easy for candidates to assume DMS alone can handle heterogeneous migrations without schema conversion, or that a PostgreSQL-native tool like pg_dump can extract data from Oracle, leading them to choose options A or D instead of recognizing the mandatory role of SCT.
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
✓
Use AWS SCT to convert the schema and AWS DMS to migrate data
AWS Schema Conversion Tool (SCT) is required to convert the Oracle schema (including complex joins and transaction logic) to a PostgreSQL-compatible format, and AWS Database Migration Service (DMS) performs the ongoing data migration with minimal downtime. This combination handles both schema transformation and data replication for heterogeneous migrations, which is essential for a financial application with complex joins and transactions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use AWS DMS with native Oracle to PostgreSQL endpoint
Why it's wrong here
DMS can migrate data but schema conversion requires SCT.
- ✗
Use Oracle GoldenGate to replicate data to Aurora PostgreSQL
Why it's wrong here
GoldenGate supports Oracle to Oracle replication; not straightforward for Aurora.
- ✓
Use AWS SCT to convert the schema and AWS DMS to migrate data
Why this is correct
SCT converts schema, DMS migrates data.
- ✗
Use pg_dump to export the Oracle database and restore to Aurora PostgreSQL
Why it's wrong here
pg_dump is for PostgreSQL, not Oracle.
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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.