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Amazon DVA-C01 Online Practice Questions and Exam Preparation

DVA-C01 Exam Details

  • Exam Code
    :DVA-C01
  • Exam Name
    :AWS Certified Developer - Associate (DVA-C01)
  • Certification
    :Amazon Certifications
  • Vendor
    :Amazon
  • Total Questions
    :613 Q&As
  • Last Updated
    :Oct 01, 2025

Amazon DVA-C01 Online Questions & Answers

  • Question 561:

    company needs a fully-managed source control service that will work in AWS. The service must ensure that revision control synchronizes multiple distributed repositories by exchanging sets of changes peer-to-peer. All users need to work productively even when not connected to a network.

    Which source control service should be used?

    A. Subversion

    B. AWS CodeBuild

    C. AWS CodeCommit

    D. AWS CodeStar

  • Question 562:

    A Developer has been asked to make changes to the source code of an AWS Lambda function. The function is managed using an AWS CloudFormation template. The template is configured to load the source code from an Amazon S3 bucket. The Developer manually created a .ZIP file deployment package containing the changes and put the file into the correct location on Amazon S3. When the function is invoked, the code changes have not been applied. What step is required to update the function with the changes?

    A. Delete the .ZIP file on S3, and re-upload by using a different object key name.

    B. Update the CloudFormation stack with the correct values for the function code properties S3Bucket, S3Key, or S3ObjectVersion.

    C. Ensure that the function source code is base64-encoded before uploading the deployment package to S3.

    D. Modify the execution role of the Lambda function to allow S3 access permission to the deployment package .ZIP file.

  • Question 563:

    A Developer created a dashboard for an application using Amazon API Gateway, Amazon S3, AWS Lambda, and Amazon RDS. The Developer needs an authentication mechanism allowing a user to sign in and view the dashboard. It must be accessible from mobile applications, desktops, and tablets, and must remember user preferences across platforms.

    Which AWS service should the Developer use to support this authentication scenario?

    A. AWS KMS

    B. Amazon Cognito

    C. AWS Directory Service

    D. Amazon IAM

  • Question 564:

    A Developer is writing a mobile application that allows users to view images from an S3 bucket. The users must be able to log in with their Amazon login, as well as Facebook?and/or Google?accounts. How can the Developer provide this authentication functionality?

    A. Use Amazon Cognito with web identity federation.

    B. Use Amazon Cognito with SAML-based identity federation.

    C. Use AWS IAM Access/Secret keys in the application code to allow Get* on the S3 bucket.

    D. Use AWS STS AssumeRole in the application code and assume a role with Get* permissions on the S3 bucket.

  • Question 565:

    An Amazon S3 bucket, "myawsbucket" is configured with website hosting in Tokyo region, what is the region-specific website endpoint?

    A. www.myawsbucket.ap-northeast-1.amazonaws.com

    B. myawsbucket.s3-website-ap-northeast-1.amazonawscom

    C. myawsbucket.amazonaws.com

    D. myawsbucket.tokyo.amazonaws.com

  • Question 566:

    You attempt to store an object in the US-STANDARD region in Amazon S3, and receive a confirmation that it has been successfully stored. You then immediately make another API call and attempt to read this object. S3 tells you that the object does not exist

    What could explain this behavior?

    A. US-STANDARD uses eventual consistency and it can take time for an object to be readable in a bucket

    B. Objects in Amazon S3 do not become visible until they are replicated to a second region.

    C. US-STANDARD imposes a 1 second delay before new objects are readable.

    D. You exceeded the bucket object limit, and once this limit is raised the object will be visible.

  • Question 567:

    A company has multiple Developers located across the globe who are updating code incrementally for a development project. When Developers upload code concurrently, internet connectivity is slow, and it is taking a long time to upload code for deployment in AWS Elastic Beanstalk.

    Which step will result in minimized upload and deployment time with the LEAST amount of administrative effort?

    A. Allow the Developers to upload the code to an Amazon S3 bucket, and deploy it directly to Elastic Beanstalk.

    B. Allow the Developers to upload the code to a central FTP server to deploy the application to Elastic Beanstalk.

    C. Create an AWS CodeCommit repository, allow the Developers to commit code to it, and then directly deploy the code to Elastic Beanstalk.

    D. Create a code repository on an Amazon EC2 instance so that all Developers can update the code, and deploy the application from the instance to Elastic Beanstalk.

  • Question 568:

    A Developer accesses AWS CodeCommit over SSH. The SSH keys configured to access AWS CodeCommit are tied to a user with the following permissions:

    The Developer needs to create/delete branches.

    Which specific IAM permissions need to be added, based on the principle of least privilege?

    A. "codecommit:CreateBranch""codecommit:DeleteBranch"

    B. "codecommit:Put*"

    C. "codecommit:Update*"

    D. "codecommit:*"

  • Question 569:

    A company is developing a new online game that will run on top of Amazon ECS. Four distinct Amazon ECS services will be part of the architecture, each requiring specific permissions to various AWS services. The company wants to optimize the use of the underlying Amazon EC2 instances by bin packing the containers based on memory reservation.

    Which configuration would allow the Development team to meet these requirements MOST securely?

    A. Create a new Identity and Access Management (IAM) instance profile containing the required permissions for the various ECS services, then associate that instance role with the underlying EC2 instances.

    B. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then configure each ECS service to reference the associated IAM role.

    C. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then, create an IAM group and configure the ECS cluster to reference that group.

    D. Create four distinct IAM roles, each containing the required permissions for the associated ECS service, then configure each ECS task definition to referene the associated IAM role.

  • Question 570:

    A Developer created a Lambda function for a web application backend. When testing the Lambda function from the AWS Lambda console, the Developer can see that the function is being executed, but there is no log data being generated in Amazon CloudWatch Logs, even after several minutes.

    What could cause this situation?

    A. The Lambda function does not have any explicit log statements for the log data to send it to CloudWatch Logs.

    B. The Lambda function is missing CloudWatch Logs as a source trigger to send log data.

    C. The execution role for the Lambda function is missing permissions to write log data to the CloudWatch Logs.

    D. The Lambda function is missing a target CloudWatch Log group.

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