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Amazon DVA-C01 Exam
AWS Certified Developer - Associate DVA-C02 (Page 2 )

Updated On: 26-Jan-2026
Page 2 of 113
PDF with 500 Questions

A company is implementing an application on Amazon EC2 instances. The application needs to process incoming transactions. When the application detects a transaction that is not valid, the application must send a chat message to the company's support team. To send the message, the application needs to retrieve the access token to authenticate by using the chat API.
A developer needs to implement a solution to store the access token. The access token must be encrypted at rest and in transit. The access token must also be accessible from other AWS accounts.
Which solution will meet these requirements with the LEAST management overhead?

  1. Use an AWS Systems Manager Parameter Store SecureString parameter that uses an AWS Key Management Service (AWS KMS) AWS managed key to store the access token. Add a resource-based policy to the parameter to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Parameter Store. Retrieve the token from Parameter Store with the decrypt flag enabled. Use the decrypted access token to send the message to the chat.
  2. Encrypt the access token by using an AWS Key Management Service (AWS KMS) customer managed key. Store the access token in an Amazon DynamoDB table. Update the IAM role of the EC2 instances with permissions to access DynamoDB and AWS KMS. Retrieve the token from DynamoDDecrypt the token by using AWS KMS on the EC2 instances. Use the decrypted access token to send the message to the chat.
  3. Use AWS Secrets Manager with an AWS Key Management Service (AWS KMS) customer managed key to store the access token. Add a resource-based policy to the secret to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Secrets Manager. Retrieve the token from Secrets Manager. Use the decrypted access token to send the message to the chat.
  4. Encrypt the access token by using an AWS Key Management Service (AWS KMS) AWS managed key. Store the access token in an Amazon S3 bucket. Add a bucket policy to the S3 bucket to allow access from other accounts. Update the IAM role of the EC2 instances with permissions to access Amazon S3 and AWS KMS. Retrieve the token from the S3 bucket. Decrypt the token by using AWS KMS on the EC2 instances. Use the decrypted access token to send the massage to the chat.

Answer(s): C



A company has a web application that contains an Amazon API Gateway REST API. A developer has created an AWS CloudFormation template for the initial deployment of the application. The developer has deployed the application successfully as part of an AWS CodePipeline continuous integration and continuous delivery (CI/CD) process. All resources and methods are available through the deployed stage endpoint.
The CloudFormation template contains the following resource types:
• AWS::ApiGateway::RestApi
• AWS::ApiGateway::Resource
• AWS::ApiGateway::Method
• AWS::ApiGateway::Stage
• AWS::ApiGateway::Deployment
The developer adds a new resource to the REST API with additional methods and redeploys the template. CloudFormation reports that the deployment is successful and that the stack is in the UPDATE_COMPLETE state. However, calls to all new methods are returning 404 (Not Found) errors.
What should the developer do to make the new methods available?

  1. Specify the disable-rollback option during the update-stack operation.
  2. Unset the CloudFormation stack failure options.
  3. Add an AWS CodeBuild stage to CodePipeline to run the aws apigateway create-deployment AWS CLI command.
  4. Add an action to CodePipeline to run the aws cloudfront create-invalidation AWS CLI command.

Answer(s): C



A developer is monitoring an application that runs on an Amazon EC2 instance. The developer has configured a custom Amazon CloudWatch metric with data granularity of 1 second. If any issues occur, the developer wants to be notified within 30 seconds by Amazon Simple Notification Service (Amazon SNS).
What should the developer do to meet this requirement?

  1. Configure a high-resolution CloudWatch alarm.
  2. Set up a custom CloudWatch dashboard.
  3. Use Amazon CloudWatch Logs Insights.
  4. Change to a default CloudWatch metric.

Answer(s): A



A company has a website that displays a daily newsletter. When a user visits the website, an AWS Lambda function processes the browser's request and queries the company's on-premises database to obtain the current newsletter. The newsletters are stored in English. The Lambda function uses the Amazon Translate TranslateText API operation to translate the newsletters, and the translation is displayed to the user.
Due to an increase in popularity, the website's response time has slowed. The database is overloaded. The company cannot change the database and needs a solution that improves the response time of the Lambda function.
Which solution meets these requirements?

  1. Change to asynchronous Lambda function invocation.
  2. Cache the translated newsletters in the Lambda/tmp directory.
  3. Enable TranslateText API caching.
  4. Change the Lambda function to use parallel processing.

Answer(s): B



A company launched an online portal to announce a new product that the company will release in 6 months. The portal requests that users enter an email address to receive communications about the product. The company needs to create a REST API that will store the email addresses in Amazon DynamoDB.
A developer has created an AWS Lambda function that can store the email addresses. The developer will deploy the Lambda function by using the AWS Serverless Application Model (AWS SAM). The developer must provide access to the Lambda function over HTTP.
Which solutions will meet these requirements with the LEAST additional configuration? (Choose two.)

  1. Expose the Lambda function by using function URLs.
  2. Expose the Lambda function by using a Gateway Load Balancer.
  3. Expose the Lambda function by using a Network Load Balancer.
  4. Expose the Lambda function by using AWS Global Accelerator.
  5. Expose the Lambda function by using Amazon API Gateway.

Answer(s): A,E



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