Question

A company runs an identical stateless web application in three AWS Regions: us-east-1, eu-west-1, and ap-southeast-1. Each Region has an Application Load Balancer fronting an Auto Scaling group. The company has a global user base and wants each user's requests to be automatically directed to the Region that provides the best response time. If one Region becomes unhealthy, traffic for that Region's users should be redirected to another healthy Region. Which Amazon Route 53 configuration meets these requirements?

Accepted Answer

Create latency-based routing records for each Regional ALB and associate a Route 53 health check with each record.

Answer

Create weighted routing records that assign equal weights to each Regional ALB and associate health checks with each record.

Answer

Create a geolocation routing policy mapping continents to each Region without configuring health checks.

Answer

Create a simple routing record with multiple ALB values so Route 53 returns all endpoints and the client picks the fastest one.