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Exam AWS Certified Advanced Networking - Specialty ANS-C01 All Questions

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Exam AWS Certified Advanced Networking - Specialty ANS-C01 topic 1 question 121 discussion

Exam question from Amazon's AWS Certified Advanced Networking - Specialty ANS-C01
Question #: 121
Topic #: 1
[All AWS Certified Advanced Networking - Specialty ANS-C01 Questions]

An application team for a startup company is deploying a new multi-tier application into the AWS Cloud. The application will be hosted on a fleet of Amazon EC2 instances that run in an Auto Scaling group behind a publicly accessible Network Load Balancer (NLB). The application requires the clients to work with UDP traffic and TCP traffic.

In the near term, the application will serve only users within the same geographic location. The application team plans to extend the application to a global audience and will move the deployment to multiple AWS Regions around the world to bring the application closer to the end users. The application team wants to use the new Regions to deploy new versions of the application and wants to be able to control the amount of traffic that each Region receives during these rollouts. In addition, the application team must minimize first-byte latency and jitter (randomized delay) for the end users.

How should the application team design the network architecture for the application to meet these requirements?

  • A. Create an Amazon CloudFront distribution to align to each Regional deployment. Set the NLB for each Region as the origin for each CloudFront distribution. Use an Amazon Route 53 weighted routing policy to control traffic to the newer Regional deployments.
  • B. Create an AWS Global Accelerator accelerator and listeners for the required ports. Configure endpoint groups for each Region. Configure a traffic dial for the endpoint groups to control traffic to the newer Regional deployments. Register the NLBs with the endpoint groups.
  • C. Use Amazon S3 Transfer Acceleration for the application in each Region. Adjust the amount of traffic that each Region receives from the Transfer Acceleration endpoints to the Regional NLBs.
  • D. Create an Amazon CloudFront distribution that includes an origin group. Set the NLB for each Region as the origins for the origin group. Use an Amazon Route 53 latency routing policy to control traffic to the new Regional deployments.
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Suggested Answer: B 🗳️
by wartywarthog at June 29, 2023, 7:51 p.m.
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vikasj1in
7 months ago
Selected Answer: B
AWS Global Accelerator: It is a service that uses static IP addresses as Anycast, which provides a fixed entry point for your applications. Global Accelerator directs traffic over the AWS global network to optimal AWS endpoint based on health, geography, and routing policies you configure. Listeners and Endpoint Groups: Global Accelerator allows you to configure listeners for the required ports and endpoint groups for each Region where your application is deployed. Traffic Dial: The traffic dial allows you to control the percentage of traffic that is directed to each endpoint group. This is particularly useful during rollouts or canary deployments, where you want to gradually shift traffic to a new version of the application. Minimizing Latency: AWS Global Accelerator is designed to provide low-latency, high-throughput, and fault-tolerant access to your applications.
upvoted 2 times
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Adzz
9 months ago
Selected Answer: B
B, because UDP has come into picture, so no better option than a Global Accelerator.
upvoted 1 times
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Certified101
1 year, 1 month ago
Selected Answer: B
B is correct
upvoted 1 times
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Neo00
1 year, 2 months ago
Selected Answer: B
CloudFront is designed to handle HTTP protocol meanwhile Global Accelerator is best used for both HTTP and non-HTTP protocols such as TCP and UDP. and CloudFront doesn't support NLB
upvoted 4 times
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Neo00
1 year, 2 months ago
B. CloudFront is designed to handle HTTP protocol meanwhile Global Accelerator is best used for both HTTP and non-HTTP protocols such as TCP and UDP.
upvoted 1 times
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TravelKo
1 year, 2 months ago
Selected Answer: B
NLB is not in the list of Cloud Front Origins.
upvoted 1 times
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wartywarthog
1 year, 2 months ago
B. CloudFront doesn't support NLB as an origin: https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/DownloadDistS3AndCustomOrigins.html Also S3 transfer acceleration is the wrong answer since nothing file related is mentioned in the question.
upvoted 4 times
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