A company has a multi-tier web application deployed across two AWS Regions: us-east-1 (primary) and us-west-2 (disaster recovery). The data is asynchronously replicated to the DR region. In the event of a primary region failure, the company wants to automatically route all user traffic to the DR region. <br/><br/>Which Amazon Route 53 routing policy should be used?

Answer options:

Latency routing policy

Failover routing policy

Weighted routing policy

Geolocation routing policy

How to approach this question

Identify the routing policy designed for Active-Passive DR setups.

Full Answer

B.Failover routing policy✓ Correct

Route 53 Failover routing policy is used when you want to configure active-passive failover. Route 53 monitors the health of the primary endpoint, and if it becomes unhealthy, automatically routes traffic to the secondary endpoint.

Common mistakes

Choosing Latency routing, which is for active-active performance optimization.

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