Quick Answer
The answer is Aurora Global Database, because it is the only AWS-managed database architecture that provides enforceable write control for cross-Region disaster recovery while maintaining a sub-second RPO. This is achieved through storage-layer replication that keeps the primary Region as the sole write endpoint during normal operations, preventing any accidental writes to the secondary Region and ensuring strict write enforcement. On the SAA-C03 exam, this question tests your understanding of the key difference between Aurora Global Database and other replication methods like cross-Region read replicas or DMS—the latter cannot enforce write control without additional application logic, making Aurora Global Database the clear choice for low RPO and enforceable control. A common trap is choosing Multi-AZ Aurora, which only protects within a single Region, or assuming any cross-Region replica can enforce writes. Remember the mnemonic: Global enforces, replicas just follow.
This SAA-C03 practice question tests your understanding of design resilient architectures. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: aurora Global Database enables cross-Region disaster recovery.. 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 ticket booking system uses Aurora MySQL. The company wants fast cross-Region disaster recovery with low RPO. Which architecture should be considered? The team wants the control to be enforceable during normal operations.
Aurora Global Database
Aurora Global Database replicates with low latency to secondary Regions and supports faster disaster recovery than snapshot-only approaches.
A single-AZ Aurora cluster
Why wrong: Single-AZ design does not provide cross-Region DR.
An ElastiCache Redis replica
Why wrong: ElastiCache is not an Aurora database DR mechanism.
Manual snapshots copied monthly
Why wrong: Monthly snapshots create high RPO and slow recovery.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Aurora Global Database
Aurora Global Database is designed for cross-Region disaster recovery with a typical RPO of 1 second or less, using storage-based replication that does not impact database performance. It provides fast failover to a secondary Region and allows the primary Region to enforce write control during normal operations, meeting the low RPO and enforceable control requirements.
Key principle: Aurora Global Database enables cross-Region disaster recovery.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Aurora Global Database
Why this is correct
Aurora Global Database replicates with low latency to secondary Regions and supports faster disaster recovery than snapshot-only approaches.
Related concept
Aurora Global Database enables cross-Region disaster recovery.
A single-AZ Aurora cluster
Why it's wrong here
Single-AZ design does not provide cross-Region DR.
An ElastiCache Redis replica
Why it's wrong here
ElastiCache is not an Aurora database DR mechanism.
Manual snapshots copied monthly
Why it's wrong here
Monthly snapshots create high RPO and slow recovery.
Common exam traps
The trap here is that candidates may confuse Aurora Global Database with cross-Region read replicas or manual snapshot copy strategies, underestimating the RPO and failover speed requirements for disaster recovery.
Detailed technical explanation
Aurora Global Database uses asynchronous replication at the storage layer, where only committed transactions are replicated to secondary Regions, achieving sub-second RPO without blocking writes on the primary. During a failover, the secondary Region can be promoted to a full read-write cluster in as little as 1 minute, and the original primary can later be re-added as a secondary. This architecture is ideal for global applications needing low-latency reads and fast DR, but note that Aurora Global Database does not support binary log replication or cross-Region read replicas for MySQL 5.6-compatible clusters.
Key takeaway
Aurora Global Database enables cross-Region disaster recovery.
Real-world example
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
Review aurora Global Database enables cross-Region disaster recovery., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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FAQ
Design Resilient Architectures — This question tests Design Resilient Architectures — Aurora Global Database enables cross-Region disaster recovery..
The correct answer is: Aurora Global Database — Aurora Global Database is designed for cross-Region disaster recovery with a typical RPO of 1 second or less, using storage-based replication that does not impact database performance. It provides fast failover to a secondary Region and allows the primary Region to enforce write control during normal operations, meeting the low RPO and enforceable control requirements.
Review aurora Global Database enables cross-Region disaster recovery., then practise related SAA-C03 questions on the same topic to reinforce the concept.
Aurora Global Database enables cross-Region disaster recovery.
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Last reviewed: Jun 11, 2026
This SAA-C03 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 SAA-C03 exam.
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