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Question 463 - SAA-C03 discussion

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A company has a stateless web application that runs on AWS Lambda functions that are invoked by Amazon API Gateway. The company v wants to deploy the application across multiple AWS Regions to provide Regional failover capabilities.

What should a solutions architect do to route traffic to multiple Regions?

A.
Create Amazon Route 53 health checks for each Region. Use an active-active failover configuration.
Answers
A.
Create Amazon Route 53 health checks for each Region. Use an active-active failover configuration.
B.
Create an Amazon CloudFront distribution with an origin for each Region. Use CloudFront health checks to route traffic.
Answers
B.
Create an Amazon CloudFront distribution with an origin for each Region. Use CloudFront health checks to route traffic.
C.
Create a transit gateway. Attach the transit gateway to the API Gateway endpoint in each Region. Configure the transit gateway to route requests.
Answers
C.
Create a transit gateway. Attach the transit gateway to the API Gateway endpoint in each Region. Configure the transit gateway to route requests.
D.
Create an Application Load Balancer in the primary Region. Set the target group to point to the API Gateway endpoint hostnames in each Region.
Answers
D.
Create an Application Load Balancer in the primary Region. Set the target group to point to the API Gateway endpoint hostnames in each Region.
Suggested answer: C

Explanation:

This answer is correct because it provides Regional failover capabilities for the online gaming application by using AWS Global Accelerator. AWS Global Accelerator is a networking service that helps you improve the availability, performance, and security of your public applications. Global Accelerator provides two global static public IPs that act as a fixed entry point to your application endpoints, such as NLBs, in different AWS Regions. Global Accelerator uses the AWS global network to route traffic to the optimal regional endpoint based on health, client location, and policies that you configure. Global Accelerator also terminates TCP and UDP traffic at the edge locations, which reduces the number of hops and improves the network performance. By adding AWS Global Accelerator in front of the NLBs, you can achieve Regional failover for your online gaming application.

https://docs.aws.amazon.com/global-accelerator/latest/dg/what-is-global-accelerator.html

https://aws.amazon.com/global-accelerator/

asked 16/09/2024
Emily Luijten
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