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Amazon DVA-C02 Online Practice Questions and Exam Preparation

DVA-C02 Exam Details

  • Exam Code
    :DVA-C02
  • Exam Name
    :AWS Certified Developer - Associate (DVA-C02)
  • Certification
    :Amazon Certifications
  • Vendor
    :Amazon
  • Total Questions
    :574 Q&As
  • Last Updated
    :May 27, 2026

Amazon DVA-C02 Online Questions & Answers

  • Question 311:

    A developer needs to perform geographic load testing of an API. The developer must deploy resources to multiple AWS Regions to support the load testing of the API.

    How can the developer meet these requirements without additional application code?

    A. Create and deploy an AWS Lambda function in each desired Region. Configure the Lambda function to create a stack from an AWS CloudFormation template in that Region when the function is invoked.
    B. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI create-stack-set command to create a stack set in the desired Regions.
    C. Create an AWS Systems Manager document that defines the resources. Use the document to create the resources in the desired Regions.
    D. Create an AWS CloudFormation template that defines the load test resources. Use the AWS CLI deploy command to create a stack from the template in each Region.

  • Question 312:

    A company is using the AWS Serverless Application Model (AWS SAM) to develop a social media application. A developer needs a quick way to test AWS Lambda functions locally by using test event payloads. The developer needs the structure of these test event payloads to match the actual events that AWS services create.

    Which solution should the developer use?

    A. Create shareable test Lambda events. Use these test Lambda events for local testing.
    B. Store manually created test event payloads locally. Use the SAM local invoke command with the file path to the payloads.
    C. Store manually created test event payloads in an Amazon S3 bucket. Use the SAM local invoke command with the S3 path to the payloads.
    D. Use the SAM local generate-event command to create test payloads for local testing.

  • Question 313:

    A developer is building an e-commerce application that uses multiple AWS Lambda functions. Each function performs a specific step in a customer order workflow, such as order processing and inventory management.

    The developer must ensure that the Lambda functions run in a specific order.

    Which solution will meet this requirement with the least operational overhead?

    A. Configure an Amazon Simple Queue Service (Amazon SQS) queue to contain messages about each step a function must perform. Configure the Lambda functions to run sequentially based on the order of messages in the SQS queue.
    B. Configure an Amazon Simple Notification Service (Amazon SNS) topic to contain notifications about each step a function must perform. Subscribe the Lambda functions to the SNS topic. Use subscription filters based on the step each function must perform.
    C. Configure an AWS Step Functions state machine to invoke the Lambda functions in a specific order.
    D. Configure Amazon EventBridge Scheduler schedules to invoke the Lambda functions in a specific order.

  • Question 314:

    A company created four AWS Lambda functions that connect to a relational database server that runs on an Amazon RDS instance. A security team requires the company to automatically change the database password every 30 days.

    Which solution will meet these requirements MOST securely?

    A. Store the database credentials in the environment variables of the Lambda function. Deploy the Lambda function with the new credentials every 30 days.
    B. Store the database credentials in AWS Secrets Manager. Configure a 30-day rotation schedule for the credentials.
    C. Store the database credentials in AWS Systems Manager Parameter Store secure strings. Configure a 30-day schedule for the secure strings.
    D. Store the database credentials in an Amazon S3 bucket that uses server-side encryption with customer-provided encryption keys (SSE-C). Configure a 30-day key rotation schedule for the customer key.

  • Question 315:

    A developer needs to use a code template to create an automated deployment of an application onto Amazon EC2 instances. The template must be configured to repeat deployment, installation, and updates of resources for the application. The template must be able to create identical environments and roll back to previous versions.

    Which solution will meet these requirements?

    A. Use AWS Amplify for automatic deployment templates. Use a traffic-splitting deployment to copy any deployments. Modify any resources created by Amplify, if necessary.
    B. Use AWS CodeBuild for automatic deployment. Upload the required AppSpec file template. Save the appspec.yml file in the root directory folder of the revision. Specify the deployment group that includes the EC2 instances for the deployment.
    C. Use AWS CloudFormation to create an infrastructure template in JSON format to deploy the EC2 instances. Use CloudFormation helper scripts to install the necessary software and to start the application. Call the scripts directly from the template.
    D. Use AWS AppSync to deploy the application. Upload the template as a GraphQL schema. Specify the EC2 instances for deployment of the application. Use resolvers as a version control mechanism and to make any updates to the deployments.

  • Question 316:

    A company uses a custom root certificate authority certificate chain (Root CA Cert) that is 10 KB in size to generate SSL certificates for its on-premises HTTPS endpoints. One of the company's cloud-based applications has hundreds of AWS Lambda functions that pull data from these endpoints. A developer updated the trust store of the Lambda execution environment to use the Root CA Cert when the Lambda execution environment is initialized. The developer bundled the Root CA Cert as a text file in the Lambda deployment bundle.

    After 3 months of development, the Root CA Cert is no longer valid and must be updated. The developer needs a more efficient solution to update the Root CA Cert for all deployed Lambda functions. The solution must not include rebuilding or updating all Lambda functions that use the Root CA Cert. The solution must also work for all development, testing, and production environments. Each environment is managed in a separate AWS account.

    Which combination of steps should the developer take to meet these requirements MOST cost-effectively? (Choose two.)

    A. Store the Root CA Cert as a secret in AWS Secrets Manager. Create a resource-based policy. Add IAM users to allow access to the secret.
    B. Store the Root CA Cert as a SecureString parameter in AWS Systems Manager Parameter Store. Create a resource-based policy. Add IAM users to allow access to the policy.
    C. Store the Root CA Cert in an Amazon S3 bucket. Create a resource-based policy to allow access to the bucket.
    D. Refactor the Lambda code to load the Root CA Cert from the Root CA Cert's location. Modify the runtime trust store inside the Lambda function handler.
    E. Refactor the Lambda code to load the Root CA Cert from the Root CA Cert's location. Modify the runtime trust store outside the Lambda function handler.

  • Question 317:

    A developer has created a large AWS Lambda function. Deployment of the function is failing because of an InvalidParameterValueException error. The error message indicates that the unzipped size of the function exceeds the maximum supported value.

    Which actions can the developer take to resolve this error? (Choose two.)

    A. Submit a quota increase request to AWS Support to increase the function to the required size.
    B. Use a compression algorithm that is more efficient than ZIP.
    C. Break up the function into multiple smaller functions.
    D. Zip the .zip file twice to compress the file more.
    E. Move common libraries, function dependencies, and custom runtimes into Lambda layers.

  • Question 318:

    A developer is migrating some features from a legacy monolithic application to use AWS Lambda functions instead. The application currently stores data in an Amazon Aurora DB cluster that runs in private subnets in a VPC. The AWS

    account has one VPC deployed. The Lambda functions and the DB cluster are deployed in the same AWS Region in the same AWS account.

    The developer needs to ensure that the Lambda functions can securely access the DB cluster without crossing the public internet.

    Which solution will meet these requirements?

    A. Configure the DB cluster's public access setting to Yes.
    B. Configure an Amazon RDS database proxy for he Lambda functions.
    C. Configure a NAT gateway and a security group for the Lambda functions.
    D. Configure the VPC, subnets, and a security group for the Lambda functions.

  • Question 319:

    A developer is running an application on an Amazon EC2 instance. When the application tries to read an Amazon S3 bucket, the application fails. The developer notices that the associated IAM role is missing the S3 read permission. The developer needs to give the application the ability to read the S3 bucket.

    Which solution will meet this requirement with the LEAST application disruption?

    A. Add the permission to the role. Terminate the existing EC2 instance. Launch a new EC2 instance.
    B. Add the permission to the role so that the change will take effect automatically.
    C. Add the permission to the role. Hibernate and restart the existing EC2 instance.
    D. Add the permission to the S3 bucket. Restart the EC2 instance.

  • Question 320:

    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?

    A. Configure managed rotation with the single user rotation strategy.
    B. Configure managed rotation with the alternating users rotation strategy.
    C. Configure automatic rotation with the single user rotation strategy.
    D. Configure automatic rotation with the alternating users rotation strategy.

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