Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 250 discussion

Exam question from Amazon's AWS Certified Developer - Associate DVA-C02

Question #: 250
Topic #: 1

[All AWS Certified Developer - Associate DVA-C02 Questions]

A company uses AWS CloudFormation to deploy an application that uses an Amazon API Gateway REST API with AWS Lambda function integration. The application uses Amazon DynamoDB for data persistence. The application has three stages: development, testing, and production. Each stage uses its own DynamoDB table.

The company has encountered unexpected issues when promoting changes to the production stage. The changes were successful in the development and testing stages. A developer needs to route 20% of the traffic to the new production stage API with the next production release. The developer needs to route the remaining 80% of the traffic to the existing production stage. The solution must minimize the number of errors that any single customer experiences.

Which approach should the developer take to meet these requirements?

A. Update 20% of the planned changes to the production stage. Deploy the new production stage. Monitor the results. Repeat this process five times to test all planned changes.
B. Update the Amazon Route 53 DNS record entry for the production stage API to use a weighted routing policy. Set the weight to a value of 80. Add a second record for the production domain name. Change the second routing policy to a weighted routing policy. Set the weight of the second policy to a value of 20. Change the alias of the second policy to use the testing stage API.
C. Deploy an Application Load Balancer (ALB) in front of the REST API. Change the production API Amazon Route 53 record to point traffic to the ALB. Register the production and testing stages as targets of the ALB with weights of 80% and 20%, respectively.
D. Configure canary settings for the production stage API. Change the percentage of traffic directed to canary deployment to 20%. Make the planned updates to the production stage. Deploy the changes

Show Suggested Answer

Suggested Answer: D 🗳️

by Claire_KMT at Oct. 29, 2023, 2:02 a.m.

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Comments

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65703c1

5 months ago

Selected Answer: D

D is the correct answer.

upvoted 2 times

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SerialiDr

9 months ago

Selected Answer: D

Amazon API Gateway supports canary release deployments, which are specifically designed for this type of scenario. By configuring canary settings, the developer can gradually roll out changes to a small percentage of users (20% in this case) while still serving the majority of users (80%) with the current production stage. This approach helps in minimizing the impact of potential issues with new deployments.

upvoted 3 times

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ansobimat

11 months, 1 week ago

Selected Answer: D

D is correct

upvoted 3 times

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Claire_KMT

12 months ago

D. Configure canary settings for the production stage API. Change the percentage of traffic directed to canary deployment to 20%. Make the planned updates to the production stage. Deploy the changes

upvoted 2 times

...

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Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 250 discussion

Comments

65703c1

SerialiDr

ansobimat

Claire_KMT

SY0-701