A company uses Amazon RDS for Microsoft SQL Server as its primary database and must ensure cross-Region high availability with RPO < 1 min and RTO < 10 min. Which solution meets these requirements?

The correct answer is A. Use RDS Multi-AZ DB cluster with cross-Region read replicas. Automate failover via Route 53.. RDS Multi-AZ cluster deployments with cross-Region read replicas support near real-time replication (<1 min RPO) and fast promotion (<10 min RTO). Route 53 CNAME failover redirects application traffic automatically. This is the AWS-recommended DR pattern.

Submitted by jian89· Mar 6, 2026Reliability & Resilience

Question

Options

AUse RDS Multi-AZ DB cluster with cross-Region read replicas. Automate failover via Route 53.
BUse Multi-AZ cluster with snapshots copied cross-Region.
CUse single-AZ RDS + DMS continuous replication.
DUse single-AZ with Backup and restore.

How the community answered

(61 responses)

A
84% (51)
B
10% (6)
C
2% (1)
D
5% (3)

Explanation

RDS Multi-AZ cluster deployments with cross-Region read replicas support near real-time replication (<1 min RPO) and fast promotion (<10 min RTO). Route 53 CNAME failover redirects application traffic automatically. This is the AWS-recommended DR pattern.

Topics

#RDS#High Availability#Disaster Recovery#RPO/RTO

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