SAA-C03 Q61 · DR

Question

A company hosts an application on AWS that uses an Amazon S3 bucket and an Amazon Aurora database. The company wants to implement a multi-Region disaster recovery (DR) strategy that minimizes potential data loss. Which solution will meet these requirements?

Accepted Answer

**Option D** satisfies every requirement:

1. **Multi-Region DR** — Both Aurora Global Database and S3 Cross-Region Replication (CRR) replicate data to a second AWS Region, providing true multi-Region protection.

2. **Minimizes potential data loss (low RPO):**
   - **Aurora Global Database** uses dedicated storage-level replication (not binlog-based) with a typical replication lag of **under 1 second** across Regions. This gives an RPO of ~1 second — far better than any backup-based approach.
   - **S3 Cross-Region Replication** continuously and asynchronously replicates objects to the second bucket as they are written. With S3 Replication Time Control (S3 RTC), 99.99% of objects replicate within 15 minutes.

3. **Complete solution** — It addresses both data stores (Aurora + S3) with Regi

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