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Amazon DVA-C01 Exam
AWS Certified Developer - Associate DVA-C02 (Page 17 )

Updated On: 26-Jan-2026
Page 17 of 113
PDF with 500 Questions

A developer is building an application on AWS. The application includes an AWS Lambda function that processes messages from an Amazon Simple Queue Service (Amazon SQS) queue.
The Lambda function sometimes fails or times out. The developer needs to figure out why the Lambda function fails to process some messages.
Which solution will meet these requirements with the LEAST operational overhead?

  1. Increase the maximum timeout of the Lambda function to 15 minutes. Check the AWS CloudTrail event history for error details.
  2. Increase the visibility timeout of the SQS queue. Check logs in Amazon CloudWatch Logs for error details.
  3. Create a dead-letter queue. Configure the Lambda function to send the failed messages to the dead-letter queue.
  4. Create an Amazon DynamoDB table. Update the Lambda function to send the failed messages to the DynamoDB table.

Answer(s): C



A developer uses AWS CloudFormation to deploy an Amazon API Gateway API and an AWS Step Functions state machine. The state machine must reference the API Gateway API after the CloudFormation template is deployed. The developer needs a solution that uses the state machine to reference the API Gateway endpoint.
Which solution will meet these requirements MOST cost-effectively?

  1. Configure the CloudFormation template to reference the API endpoint in the DefinitionSubstitutions property for the AWS::StepFunctions::StateMachine resource.
  2. Configure the CloudFormation template to store the API endpoint in an environment variable for the AWS::StepFunctions::StateMachine resource. Configure the state machine to reference the environment variable.
  3. Configure the CloudFormation template to store the API endpoint in a standard AWS::SecretsManager::Secret resource. Configure the state machine to reference the resource.
  4. Configure the CloudFormation template to store the API endpoint in a standard AWS::AppConfig::ConfigurationProfile resource. Configure the state machine to reference the resource.

Answer(s): A



A company is building a serverless application on AWS. The application uses Amazon API Gateway and AWS Lambda. The company wants to deploy the application to its development, test, and production environments.
Which solution will meet these requirements with the LEAST development effort?

  1. Use API Gateway stage variables and create Lambda aliases to reference environment-specific resources.
  2. Use Amazon Elastic Container Service (Amazon ECS) to deploy the application to the environments.
  3. Duplicate the code for each environment. Deploy the code to a separate API Gateway stage.
  4. Use AWS Elastic Beanstalk to deploy the application to the environments.

Answer(s): A



A company runs an application on AWS. The application consists of a static website that is hosted on Amazon S3. The application includes Amazon API Gateway APIs that invoke AWS Lambda functions. During a period of high traffic on the application, application users reported that the application was slow at irregular intervals. There were no failed requests.
A developer needs to find the slow executions across all the Lambda functions.
Which solution will meet these requirements?

  1. Perform a query across all the Lambda function log groups by using Amazon CloudWatch Logs Insights. Filter on type of report and sort descending by Lambda function execution duration.
  2. Enable AWS CloudTrail Insights on the account where the Lambda functions are running. After CloudTrail Insights has finished processing, review CloudTrail Insights to find the anomalous functions.
  3. Enable AWS X-Ray for all the Lambda functions. Configure an X-Ray insight on a new group that includes all the Lambda functions. After the X-Ray insight has finished processing, review the X-Ray logs.
  4. Set up AWS Glue to crawl through the logs in Amazon CloudWatch Logs for the Lambda functions. Configure an AWS Glue job to transform the logs into a structured format and to output the logs into Amazon S3. Use the Amazon CloudWatch dashboard to visualize the slowest functions based on the duration.

Answer(s): C



A company runs a serverless application on AWS. The application includes an AWS Lambda function. The Lambda function processes data and stores the data in an Amazon RDS for PostgreSQL database. A developer created a user credentials in the database for the application.
The developer needs to use AWS Secrets Manager to manage the user credentials. The password must to be rotated on a regular basis. The solution needs to ensure that there is high availability and no downtime for the application during secret rotation.
What should the developer do to meet these requirements?

  1. Configure managed rotation with the single user rotation strategy.
  2. Configure managed rotation with the alternating users rotation strategy.
  3. Configure automatic rotation with the single user rotation strategy.
  4. Configure automatic rotation with the alternating users rotation strategy.

Answer(s): D



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