- A
Deploy Amazon Aurora Serverless with cross-Region replication.
Why wrong: Aurora Serverless does not support cross-Region replication or Global Database.
- B
Deploy Amazon Aurora Global Database with one primary Region and up to five secondary Regions.
Aurora Global Database provides low-latency reads and managed failover with minimal data loss.
- C
Deploy Amazon RDS for MySQL with cross-Region read replicas.
Why wrong: Cross-Region read replicas for RDS MySQL do not provide managed global database failover.
- D
Deploy Amazon RDS for PostgreSQL with Multi-AZ and cross-Region snapshot copy.
Why wrong: Multi-AZ is within a region; cross-Region snapshot copy does not provide automatic failover.
Question 476 of 1,730
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 is deploying a multi-region application with Amazon Aurora Global Database. They need to ensure that the secondary region can be promoted to primary with minimal data loss in the event of a regional failure. Which configuration should they use?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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
✓
Deploy Amazon Aurora Global Database with one primary Region and up to five secondary Regions.
Amazon Aurora Global Database is designed for low-latency cross-Region replication and provides a managed failover capability that promotes a secondary Region to primary with a Recovery Point Objective (RPO) of typically less than 1 second. This configuration meets the requirement of minimal data loss during a regional failure because replication is done at the storage layer, not through asynchronous binlog replication, ensuring near-zero lag.
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.
- ✗
Deploy Amazon Aurora Serverless with cross-Region replication.
Why it's wrong here
Aurora Serverless does not support cross-Region replication or Global Database.
- ✓
Deploy Amazon Aurora Global Database with one primary Region and up to five secondary Regions.
Why this is correct
Aurora Global Database provides low-latency reads and managed failover with minimal data loss.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Deploy Amazon RDS for MySQL with cross-Region read replicas.
Why it's wrong here
Cross-Region read replicas for RDS MySQL do not provide managed global database failover.
- ✗
Deploy Amazon RDS for PostgreSQL with Multi-AZ and cross-Region snapshot copy.
Why it's wrong here
Multi-AZ is within a region; cross-Region snapshot copy does not provide automatic failover.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse cross-Region read replicas (which are asynchronous and can lose data) with Aurora Global Database's storage-level replication, which provides near-zero RPO and automated promotion capabilities.
Detailed technical explanation
How to think about this question
Aurora Global Database uses a dedicated storage layer that replicates data from the primary Region to secondary Regions with a typical RPO of less than 1 second, leveraging the same cluster volume technology. During a failover, the secondary cluster is promoted to a standalone primary cluster, and the old primary is isolated, ensuring that committed transactions are preserved. In a real-world scenario, a regional outage might cause a few seconds of replication lag, but Aurora Global Database's storage-level replication minimizes this compared to traditional binlog-based replication.
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: Deploy Amazon Aurora Global Database with one primary Region and up to five secondary Regions. — Amazon Aurora Global Database is designed for low-latency cross-Region replication and provides a managed failover capability that promotes a secondary Region to primary with a Recovery Point Objective (RPO) of typically less than 1 second. This configuration meets the requirement of minimal data loss during a regional failure because replication is done at the storage layer, not through asynchronous binlog replication, ensuring near-zero lag.
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: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 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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