Quick Answer
The answer is Aurora Global Database, as it is the only architecture purpose-built for cross-Region disaster recovery with an RPO of 1 second or less. This is achieved through storage-level asynchronous replication that adds minimal latency and does not impact primary database performance, making it ideal for a ticket booking system that cannot tolerate significant data loss. On the SAA-C03 exam, this scenario tests your understanding of how Aurora Global Database differs from manual snapshot copying or cross-Region read replicas—snapshots have much higher RPO and slower recovery, while standard read replicas are not designed for fast failover. A common trap is choosing multi-AZ deployments, which only protect within a single Region, not across Regions. Remember the memory tip: “Global for geography, low RPO for safety”—if the question demands both cross-Region and sub-second data loss, Aurora Global Database is the only fit.
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. 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 ticket booking system uses Aurora MySQL. The company wants fast cross-Region disaster recovery with low RPO. Which architecture should be considered?
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. This meets the requirement for fast failover and low data loss, unlike manual snapshot-based approaches which have higher RPO and slower recovery.
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.
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
Read the scenario before looking for a memorised answer.
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 cross-Region read replicas (which have higher lag and manual promotion) with Aurora Global Database, or assume that ElastiCache or single-AZ deployments can provide adequate DR, when only Aurora Global Database meets the low RPO and fast cross-Region recovery requirements.
Detailed technical explanation
Aurora Global Database uses a dedicated storage layer that asynchronously replicates data from the primary Region to up to five secondary Regions with a typical lag of under 1 second, leveraging the same cluster volume architecture. During a failover, the secondary Region can be promoted to a full read-write cluster in as little as 1 minute, and the RPO is typically zero if the failover is planned, or very low (sub-second) for unplanned events. This is achieved without the need for binary log replication or additional EC2 instances, as the replication is handled at the storage layer by the Aurora distributed storage system.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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
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FAQ
Design Resilient Architectures — This question tests Design Resilient Architectures — Read the scenario before looking for a memorised answer..
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. This meets the requirement for fast failover and low data loss, unlike manual snapshot-based approaches which have higher RPO and slower recovery.
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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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A ticket booking system uses Aurora MySQL. The company wants fast cross-Region disaster recovery with low RPO. Which architecture should be considered? The architecture review board prefers a managed AWS-native control.
mediumWhy A: Aurora Global Database is the correct choice because it provides a managed, cross-Region disaster recovery solution with a Recovery Point Objective (RPO) of typically less than 1 second, using storage-based replication that does not impact database performance. This meets the requirement for fast failover and low data loss, while being fully AWS-native and controlled by the architecture review board.
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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