This DBS-C01 practice question tests your understanding of workload-specific database design. 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 needs to migrate an on-premises Oracle database to AWS with minimal changes to the application code. The application uses complex stored procedures and has high availability requirements. Which database service should be used?
Amazon RDS for Oracle
RDS for Oracle provides full Oracle compatibility with Multi-AZ for high availability.
Amazon DynamoDB
Why wrong: DynamoDB is NoSQL and does not support stored procedures or Oracle compatibility.
Amazon Redshift
Why wrong: Redshift is a data warehouse, not suitable for OLTP workloads.
Amazon Aurora PostgreSQL
Why wrong: Aurora PostgreSQL would require rewriting stored procedures from PL/SQL to PL/pgSQL.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Amazon RDS for Oracle
Amazon RDS for Oracle is the correct choice because it provides native Oracle compatibility, supporting complex stored procedures, PL/SQL, and existing application code with minimal changes. It also offers Multi-AZ deployments for high availability, meeting the requirement without requiring a complete rewrite.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Amazon RDS for Oracle
Why this is correct
RDS for Oracle provides full Oracle compatibility with Multi-AZ for high availability.
Related concept
Read the scenario before looking for a memorised answer.
Amazon DynamoDB
Why it's wrong here
DynamoDB is NoSQL and does not support stored procedures or Oracle compatibility.
Amazon Redshift
Why it's wrong here
Redshift is a data warehouse, not suitable for OLTP workloads.
Amazon Aurora PostgreSQL
Why it's wrong here
Aurora PostgreSQL would require rewriting stored procedures from PL/SQL to PL/pgSQL.
Common exam traps
The trap here is that candidates may choose Amazon Aurora PostgreSQL due to its high availability and performance, overlooking the fact that it does not support Oracle-specific stored procedures and PL/SQL, which would require costly application rewrites.
Detailed technical explanation
Amazon RDS for Oracle supports Oracle Database features such as PL/SQL, stored procedures, triggers, and packages, enabling near-seamless migration from on-premises Oracle. For high availability, RDS Multi-AZ automatically replicates data to a standby instance in a different Availability Zone, providing automatic failover with minimal downtime, which is critical for production workloads.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
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FAQ
Workload-Specific Database Design — This question tests Workload-Specific Database Design — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon RDS for Oracle — Amazon RDS for Oracle is the correct choice because it provides native Oracle compatibility, supporting complex stored procedures, PL/SQL, and existing application code with minimal changes. It also offers Multi-AZ deployments for high availability, meeting the requirement without requiring a complete rewrite.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 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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