Amazon DVA-C02 Free Sample Exam Questions 2026

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Page: 1 / 13
Total Questions: 65

Questions & Answers PDF

• Question 1

  

  A company is building a web application on AWS. When a customer sends a request, the application will generate reports and then make the reports available to the customer within one hour. Reports should be accessible to the customer for 8 hours. Some reports are larger than 1 MB. Each report is unique to the customer. The application should delete all reports that are older than 2 days.Which solution will meet these requirements with the LEAST operational overhead?

  • Generate the reports and then store the reports as Amazon DynamoDB items that have a specifiedTTL. Generate a URL that retrieves the reports from DynamoDB. Provide the URL to customers through the web application.
  • Generate the reports and then store the reports in an Amazon S3 bucket that uses server-side encryption. Attach the reports to an Amazon Simple Notification Service (Amazon SNS) message. Subscribe the customer to email notifications from Amazon SNS.
  • Generate the reports and then store the reports in an Amazon S3 bucket that uses server-side encryption. Generate a presigned URL that contains an expiration date Provide the URL to customers through the web application. Add S3 Lifecycle configuration rules to the S3 bucket to delete old reports.
  • Generate the reports and then store the reports in an Amazon RDS database with a date stamp. Generate an URL that retrieves the reports from the RDS database. Provide the URL to customers through the web application. Schedule an hourly AWS Lambda function to delete database records that have expired date stamps.

  Reveal Answer Answer: B Next Question

• Question 2

  

  A company has a multi-node Windows legacy application that runs on premises. The application uses a network shared folder as a centralized configuration repository to store configuration files in .xml format. The company is migrating the application to Amazon EC2 instances. As part of the migration to AWS, a developer must identify a solution that provides high availability for the repository.Which solution will meet this requirement MOST cost-effectively?

  • Mount an Amazon Elastic Block Store (Amazon EBS) volume onto one of the EC2 instances. Deploy a file system on the EBS volume. Use the host operating system to share a folder. Update the application code to read and write configuration files from the shared folder.
  • Deploy a micro EC2 instance with an instance store volume. Use the host operating system to share a folder. Update the application code to read and write configuration files from the shared folder.
  • Create an Amazon S3 bucket to host the repository. Migrate the existing .xml files to the S3 bucket. Update the application code to use the AWS SDK to read and write configuration files from Amazon S3.
  • Create an Amazon S3 bucket to host the repository. Migrate the existing .xml files to the S3 bucket. Mount the S3 bucket to the EC2 instances as a local volume. Update the application code to read and write configuration files from the disk.

  Reveal Answer Answer: C Next Question

• Question 3

  

  A developer wants to insert a record into an Amazon DynamoDB table as soon as a new file is addedto an Amazon S3 bucket.Which set of steps would be necessary to achieve this?

  • Create an event with Amazon EventBridge that will monitor the S3 bucket and then insert the records into DynamoDB.
  • Configure an S3 event to invoke an AWS Lambda function that inserts records into DynamoDB.
  • Create an AWS Lambda function that will poll the S3 bucket and then insert the records into DynamoDB.
  • Create a cron job that will run at a scheduled time and insert the records into DynamoDB.

  Reveal Answer Answer: B Next Question

• Question 4

  

  A company has an Amazon S3 bucket that contains sensitive dat

  • The data must be encrypted in transit and at rest. The company encrypts the data in the S3 bucket by using an AWS Key Management Service (AWS KMS) key. A developer needs to grant several other AWS accounts the permission to use the S3 GetObject operation to retrieve the data from the S3 bucket.How can the developer enforce that all requests to retrieve the data provide encryption in transit?
  • Define a resource-based policy on the S3 bucket to deny access when a request meets the condition “aws:SecureTransport”: “false”.
  • Define a resource-based policy on the S3 bucket to allow access when a request meets the condition “aws:SecureTransport”: “false”.
  • Define a role-based policy on the other accounts' roles to deny access when a request meets the condition of “aws:SecureTransport”: “false”.
  • Define a resource-based policy on the KMS key to deny access when a request meets the condition of “aws:SecureTransport”: “false”.

  Reveal Answer Answer: A Next Question

• Question 5

  

  A company is running Amazon EC2 instances in multiple AWS accounts. A developer needs to implement an application that collects all the lifecycle events of the EC2 instances. The applicationneeds to store the lifecycle events in a single Amazon Simple Queue Service (Amazon SQS) queue in the company's main AWS account for further processing.Which solution will meet these requirements?

  • Configure Amazon EC2 to deliver the EC2 instance lifecycle events from all accounts to the Amazon EventBridge event bus of the main account. Add an EventBridge rule to the event bus of the main account that matches all EC2 instance lifecycle events. Add the SQS queue as a target of the rule.
  • Use the resource policies of the SQS queue in the main account to give each account permissions to write to that SQS queue. Add to the Amazon EventBridge event bus of each account an EventBridge rule that matches all EC2 instance lifecycle events. Add the SQS queue in the main account as a target of the rule.
  • Write an AWS Lambda function that scans through all EC2 instances in the company accounts to detect EC2 instance lifecycle changes. Configure the Lambda function to write a notification message to the SQS queue in the main account if the function detects an EC2 instance lifecycle change. Add an Amazon EventBridge scheduled rule that invokes the Lambda function every minute.
  • Configure the permissions on the main account event bus to receive events from all accounts. Create an Amazon EventBridge rule in each account to send all the EC2 instance lifecycle events to the main account event bus. Add an EventBridge rule to the main account event bus that matches all EC2 instance lifecycle events. Set the SQS queue as a target for the rule.

  Reveal Answer Answer: D Next Question

• Question 6

  

  A developer has an application that makes batch requests directly to Amazon DynamoDB by using the BatchGetItem low-level API operation. The responses frequently return values in the UnprocessedKeys element.Which actions should the developer take to increase the resiliency of the application when the batch response includes values in UnprocessedKeys? (Choose two.)

  • Retry the batch operation immediately.
  • Retry the batch operation with exponential backoff and randomized delay.
  • Update the application to use an AWS software development kit (AWS SDK) to make the requests.
  • Increase the provisioned read capacity of the DynamoDB tables that the operation accesses.
  • Increase the provisioned write capacity of the DynamoDB tables that the operation accesses.

  Reveal Answer Answer: B, ,D Next Question

• Question 7

  

  A developer has written an AWS Lambda function. The function is CPU-bound. The developer wants to ensure that the function returns responses quickly.How can the developer improve the function's performance?

  • Increase the function's CPU core count.
  • Increase the function's memory.
  • Increase the function's reserved concurrency.
  • Increase the function's timeout.

  Reveal Answer Answer: B Next Question

• Question 8

  

  A company has deployed an application on AWS Elastic Beanstalk. The company has configured the Auto Scaling group that is associated with the Elastic Beanstalk environment to have five Amazon EC2 instances. If the capacity is fewer than four EC2 instances during the deployment, application performance degrades. The company is using the all-at-once deployment policy.What is the MOST cost-effective way to solve the deployment issue?

  • Change the Auto Scaling group to six desired instances.
  • Change the deployment policy to traffic splitting. Specify an evaluation time of 1 hour.
  • Change the deployment policy to rolling with additional batch. Specify a batch size of 1.
  • Change the deployment policy to rolling. Specify a batch size of 2.

  Reveal Answer Answer: C Next Question

• Question 9

  

  A development team wants to build a continuous integration/continuous delivery (CI/CD) pipeline. The team is using AWS CodePipeline to automate the code build and deployment. The team wants to store the program code to prepare for the CI/CD pipeline.Which AWS service should the team use to store the program code?

  • AWS CodeDeploy
  • AWS CodeArtifact
  • AWS CodeCommit
  • Amazon CodeGuru

  Reveal Answer Answer: C Next Question

• Question 10

  

  A developer is designing an AWS Lambda function that creates temporary files that are less than 10 MB during invocation. The temporary files will be accessed and modified multiple times during invocation. The developer has no need to save or retrieve these files in the future.Where should the temporary files be stored?

  • the /tmp directory
  • Amazon Elastic File System (Amazon EFS)
  • Amazon Elastic Block Store (Amazon EBS)
  • Amazon S3

  Reveal Answer Answer: A Next Question

Page: 1 / 13
Total Questions: 65

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