Free Amazon DVA-C02 Exam Questions

Become Amazon Certified with updated DVA-C02 exam questions and correct answers

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Total 939 Questions | Updated On: Mar 27, 2025

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Question 1

A developer is receiving HTTP 400: ThrottlingException errors intermittently when calling the Amazon CloudWatch API. When a call fails, no data is retrieved.

What best practice should first be applied to address this issue?

A : Contact AWS Support for a limit increase.

B : Use the AWS CLI to get the metrics.

C : Analyze the applications and remove the API call.

D : Retry the call with exponential backoff.

Answer: D

Question 2

A Developer implemented a static website hosted in Amazon S3 that makes web service requests hosted in Amazon API Gateway and AWS Lambda. The site is showing an error that reads:

“No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘null’ is therefore not allowed access.”

What should the Developer do to resolve this issue?

A : able cross-origin resource sharing (CORS) on the S3 bucket

B : the Access-Control-Request-Method header to the request

C : able cross-origin resource sharing (CORS) for the method in API Gateway

D : the Access-Control-Request-Headers header to the request

Answer: C

Question 3

An IT department uses Amazon S3 to store sensitive images. After more than 1 year, the company moves the images into archival storage. The company rarely accesses the images, but the company wants a storage solution that maximizes resiliency. The IT department needs access to the images that have been moved to archival storage within 24 hours.

Which solution will meet these requirements MOST cost-effectively?

A : Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.

B : Use S3 Standard-Infrequent Access (S3 Standard-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.

C : Use S3 Intelligent-Tiering to store the images. Use S3 Glacier Deep Archive with standard retrieval to store and retrieve archived images.

D : Use S3 One Zone-Infrequent Access (S3 One Zone-IA) to store the images. Use S3 Glacier Deep Archive with bulk retrieval to store and retrieve archived images.

Answer: D

Question 4

A developer is updating an Amazon API Gateway REST API to have a mock endpoint. The developer wants to update the integration request mapping template so the endpoint will respond to mock integration requests with specific HTTP status codes based on various conditions.

A : { if( $input.params(‘integration’) == "mock" ) "statusCode": 404 else "statusCode": 500 end }

B : { if( $input.params('scope') == "internal" ) "statusCode": 200 else "statusCode": 500 end }

C : { if( $input.path("integration") ) "statusCode": 200 else "statusCode":404 end }

D : { if( $context.integration.status ) "statusCode": 200 else "statusCode": 500 end }

Answer: D

Question 5

An application uses both Amazon EC2 instances and on-premises servers. The on-premises servers are a critical component of the application, and a developer wants to collect metrics and logs from these servers. The developer would like to use Amazon CloudWatch.

How can the developer accomplish this?

A : ite a batch script that uses system utilities to collect performance metrics and application logs. Upload the metrics and logs to CloudWatch.

B : tall the CloudWatch agent on the on-premises servers and specify IAM credentials with permissions to CloudWatch.

C : tall the CloudWatch agent on the on-premises servers and specify an IAM role with permissions to CloudWatch.

D : tall an AWS SDK on the on-premises servers that automatically sends logs to CloudWatch.

Answer: B

Page: 1 / 188

Total 939 Questions | Updated On: Mar 27, 2025

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