Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 91 discussion

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

Question #: 91
Topic #: 1

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

A company needs to develop a proof of concept for a web service application. The application will show the weather forecast for one of the company's office locations. The application will provide a REST endpoint that clients can call. Where possible, the application should use caching features provided by AWS to limit the number of requests to the backend service. The application backend will receive a small amount of traffic only during testing.

Which approach should the developer take to provide the REST endpoint MOST cost-effectively?

A. Create a container image. Deploy the container image by using Amazon Elastic Kubernetes Service (Amazon EKS). Expose the functionality by using Amazon API Gateway.
B. Create an AWS Lambda function by using the AWS Serverless Application Model (AWS SAM). Expose the Lambda functionality by using Amazon API Gateway.
C. Create a container image. Deploy the container image by using Amazon Elastic Container Service (Amazon ECS). Expose the functionality by using Amazon API Gateway.
D. Create a microservices application. Deploy the application to AWS Elastic Beanstalk. Expose the AWS Lambda functionality by using an Application Load Balancer.

Show Suggested Answer

Suggested Answer: B 🗳️

by loctong at May 14, 2023, 7:59 a.m.

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Comments

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loctong

Highly Voted 1 year, 8 months ago

Selected Answer: B

AWS Lambda function absolutely ability to do the requirements.

upvoted 9 times

JamalDaBoss

1 year, 5 months ago

Yes, Lambda bery certain great.

upvoted 3 times

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sumanshu

Most Recent 6 months, 3 weeks ago

Selected Answer: B

A) Eliminated - Amazon EKS is designed for large-scale, containerized applications that require Kubernetes orchestration. For a simple proof of concept with small traffic, it is overkill and introduces unnecessary complexity and cost. C) Eliminated - ECS introduces additional operational overhead compared to a serverless solution like Lambda. D) Elastic Beanstalk is not designed for a lightweight serverless application; it requires provisioning and managing compute resources, which increases cost and complexity.

upvoted 2 times

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65703c1

7 months, 4 weeks ago

Selected Answer: B

B is the correct answer.

upvoted 1 times

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SerialiDr

10 months, 3 weeks ago

Selected Answer: B

This solution is cost-effective because AWS Lambda charges are based on the number of requests and the duration of code execution, making it ideal for applications with low to moderate traffic. Amazon API Gateway can efficiently manage the REST endpoint and offers built-in caching capabilities to reduce the number of requests to the backend Lambda function, further optimizing costs. This setup also leverages the serverless model, reducing the operational overhead and cost associated with provisioning and managing servers.

upvoted 4 times

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a5fc516

11 months, 2 weeks ago

Selected Answer: B

yes B is correct

upvoted 1 times

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hmdev

1 year, 4 months ago

Selected Answer: B

B is the cost-effective one.

upvoted 3 times

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