This SOA-C02 practice question tests your understanding of reliability and business continuity. 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 provides cross-region disaster recovery for Amazon Aurora.. 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 runs an Amazon RDS for MySQL DB instance in us-east-1. The SysOps administrator needs to implement a disaster recovery solution that can recover from a regional outage with a Recovery Point Objective (RPO) of less than 1 second and a Recovery Time Objective (RTO) of less than 1 minute. Which solution should the administrator use?
Multi-AZ deployment
Why wrong: Only protects within a single region.
Cross-region read replica
Why wrong: Typical RPO of seconds, not sub-second; manual promotion increases RTO.
Aurora Global Database
Provides sub-second RPO and minute-level RTO across regions.
Automated snapshot copy to another region
Why wrong: RPO of hours or more; RTO involves restoring which takes time.
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 the correct choice because it provides a fully managed cross-region replication solution with a typical RPO of less than 1 second and an RTO of less than 1 minute during a regional failover. It uses a primary cluster in one region and up to five secondary clusters in other regions, with asynchronous replication that is optimized for low latency, meeting the stringent RPO/RTO requirements.
Key principle: Aurora Global Database provides cross-region disaster recovery for Amazon Aurora.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Multi-AZ deployment
Why it's wrong here
Only protects within a single region.
Cross-region read replica
Why it's wrong here
Typical RPO of seconds, not sub-second; manual promotion increases RTO.
Aurora Global Database
Why this is correct
Provides sub-second RPO and minute-level RTO across regions.
Related concept
Aurora Global Database provides cross-region disaster recovery for Amazon Aurora.
Automated snapshot copy to another region
Why it's wrong here
RPO of hours or more; RTO involves restoring which takes time.
Common exam traps
The trap here is that candidates often confuse Multi-AZ deployments (which are for high availability within a region) with cross-region disaster recovery, and they underestimate the replication lag and failover time of standard cross-region read replicas versus the optimized architecture of Aurora Global Database.
Detailed technical explanation
Aurora Global Database leverages a dedicated replication channel that bypasses the standard MySQL binlog, using a storage-level replication mechanism that achieves sub-second latency across regions. During a regional failover, the secondary region can be promoted to primary in as little as 1 minute by updating the DNS endpoint, and the replication lag is typically under 1 second due to the optimized network path and parallel apply of changes. In real-world scenarios, this is critical for applications like financial trading platforms where even a few seconds of data loss could result in significant financial exposure.
Key takeaway
Aurora Global Database provides cross-region disaster recovery for Amazon Aurora.
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 provides cross-region disaster recovery for Amazon Aurora., then practise related SOA-C02 questions on the same topic to reinforce the concept.
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FAQ
Reliability and Business Continuity — This question tests Reliability and Business Continuity — Aurora Global Database provides cross-region disaster recovery for Amazon Aurora..
The correct answer is: Aurora Global Database — Aurora Global Database is the correct choice because it provides a fully managed cross-region replication solution with a typical RPO of less than 1 second and an RTO of less than 1 minute during a regional failover. It uses a primary cluster in one region and up to five secondary clusters in other regions, with asynchronous replication that is optimized for low latency, meeting the stringent RPO/RTO requirements.
Review aurora Global Database provides cross-region disaster recovery for Amazon Aurora., then practise related SOA-C02 questions on the same topic to reinforce the concept.
Aurora Global Database provides cross-region disaster recovery for Amazon Aurora.
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Last reviewed: Jun 11, 2026
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