A global enterprise is designing a multi-region active-active architecture for a critical e-commerce platform. The database tier uses Amazon Aurora Global Database. The application tier runs on Amazon EKS. Which TWO routing and failover strategies should the architect implement to ensure the lowest latency and automatic failover? (Select TWO)

Answer options:

Use Amazon Route 53 Latency-based routing to direct traffic to the closest region.

Use Amazon Route 53 Geoproximity routing with a bias of 50.

Use AWS Global Accelerator with endpoint groups in both regions for fast failover.

Configure Aurora Global Database to automatically route read queries to the closest region using Route 53.

Use AWS Transit Gateway to route traffic between the EKS clusters.

Use Amazon CloudFront with Origin Shield enabled.

How to approach this question

Select the best DNS-based latency routing (Route 53) and the best network-layer fast failover service (Global Accelerator).

Full Answer

Route 53 Latency routing ensures users hit the closest region. AWS Global Accelerator provides static IPs and routes traffic over the AWS global network, providing much faster failover than DNS-based methods because it doesn't rely on client DNS cache expiration.

Common mistakes

Choosing Geoproximity instead of Latency routing.

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