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Amazon Web Services DVA-C02 Exam With Confidence Using Practice Dumps

Exam Code:
DVA-C02
Exam Name:
AWS Certified Developer - Associate
Certification:
Questions:
608
Last Updated:
Jun 6, 2026
Exam Status:
Stable
Amazon Web Services DVA-C02

DVA-C02: AWS Certified Associate Exam 2025 Study Guide Pdf and Test Engine

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AWS Certified Developer - Associate Questions and Answers

Question 1

A company is expanding the compatibility of its photo-snaring mobile app to hundreds of additional devices with unique screen dimensions and resolutions. Photos are stored in Amazon S3 in their original format and resolution. The company uses an Amazon CloudFront distribution to serve the photos The app includes the dimension and resolution of the display as GET parameters with every request.

A developer needs to implement a solution that optimizes the photos that are served to each device to reduce load time and increase photo quality.

Which solution will meet these requirements MOST cost-effective?

Options:

A.

Use S3 Batch Operations to invoke an AWS Lambda function to create new variants of the photos with the required dimensions and resolutions. Create a dynamic CloudFront origin that automatically maps the request of each device to the corresponding photo variant.

B.

Use S3 Batch Operations to invoke an AWS Lambda function to create new variants of the photos with the required dimensions and resolutions. Create a Lambda@Edge function to route requests to the corresponding photo vacant by using request headers.

C.

Create a Lambda@Edge function that optimizes the photos upon request and returns the photos as a response. Change the CloudFront TTL cache policy to the maximum value possible.

D.

Create a Lambda@Edge function that optimizes the photos upon request and returns the photos as a response. In the same function store a copy of the processed photos on Amazon S3 for subsequent requests.

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Question 2

A company maintains a REST service using Amazon API Gateway and the API Gateway native API key validation. The company recently launched a new registration page, which allows users to sign up for the service. The registration page creates a new API key using CreateApiKey and sends the new key to the user. When the user attempts to call the API using this key. the user receives a 403 Forbidden error. Existing users are unaffected and can still call the API.

What code updates will grant these new users access to the API?

Options:

A.

The createDeploymer.t method must be called so the API can be redeployed to include the newly created API key.

B.

The updateAuthorizer method must be called to update the API ' s authorizer to include the newly created API key

C.

The importApiKeys method must be called to import all newly created API keys into the current stage of the API.

D.

The createUsagePlanKey method must be called to associate the newly created API key with the correct usage plan.

Question 3

A company is planning to deploy an application on AWS behind an Elastic Load Balancing (ELB) load balancer. The application uses an HTTP/HTTPS listener and must access the client IP addresses.

Which load-balancing solution meets these requirements?

Options:

A.

Use an Application Load Balancer and the X-Forwarded-For headers.

B.

Use a Network Load Balancer (NLB). Enable proxy protocol support on the NLB and the target application.

C.

Use an Application Load Balancer. Register the targets by the instance ID.

D.

Use a Network Load Balancer and the X-Forwarded-For headers.