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Answer: By creating Route 53 health checks and an active-active failover setup for each Region.
The correct answer is A. Creating Amazon Route 53 health checks for each Region and using an active-active failover configuration is the best approach to route traffic across multiple AWS Regions. Route 53 can be configured to check the health of endpoints in different regions and distribute traffic based on the health status, providing robust failover capabilities. Other options, such as using CloudFront or transit gateway, do not directly address the failover requirements or are not suitable for this specific use case.
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How should a solutions architect enable multi-region deployment and failover for a stateless web application using AWS Lambda and API Gateway?
A
By creating Route 53 health checks and an active-active failover setup for each Region.
B
By setting up a CloudFront distribution with origins in each Region, leveraging CloudFront health checks for traffic routing.
C
By establishing a transit gateway connected to API Gateway endpoints in each Region, with routing configurations for requests.
D
By configuring an Application Load Balancer in the primary Region to direct traffic to API Gateway endpoints across all Regions.
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