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Free AWS Certified DevOps Engineer - Professional DOP-C02 Exam Braindumps
AWS Certified DevOps Engineer - Professional DOP-C02 Questions 137–144 (page: 19)

Updated On: 27-Apr-2026
Page 19 of 57
PDF with 447 Questions

A company manages a multi-tenant environment in its VPC and has configured Amazon GuardDuty for the corresponding AWS account. The company sends all GuardDuty findings to AWS Security Hub.

Traffic from suspicious sources is generating a large number of findings. A DevOps engineer needs to implement a solution to automatically deny traffic across the entire VPC when GuardDuty discovers a new suspicious source.

Which solution will meet these requirements?

  1. Create a GuardDuty threat list. Configure GuardDuty to reference the list. Create an AWS Lambda function that will update the threat list. Configure the Lambda function to run in response to new Security Hub findings that come from GuardDuty.
  2. Configure an AWS WAF web ACL that includes a custom rule group. Create an AWS Lambda function that will create a block rule in the custom rule group. Configure the Lambda function to run in response to new Security Hub findings that come from GuardDuty.
  3. Configure a firewall in AWS Network Firewall. Create an AWS Lambda function that will create a Drop action rule in the firewall policy. Configure the Lambda function to run in response to new Security Hub findings that come from GuardDuty.
  4. Create an AWS Lambda function that will create a GuardDuty suppression rule. Configure the Lambda function to run in response to new Security Hub findings that come from GuardDuty.

Answer(s): C



A company uses AWS Secrets Manager to store a set of sensitive API keys that an AWS Lambda function uses. When the Lambda function is invoked the Lambda function retrieves the API keys and makes an API call to an external service. The Secrets Manager secret is encrypted with the default AWS Key Management Service (AWS KMS) key.

A DevOps engineer needs to update the infrastructure to ensure that only the Lambda function's execution role can access the values in Secrets Manager. The solution must apply the principle of least privilege.

Which combination of steps will meet these requirements? (Choose two.)

  1. Update the default KMS key for Secrets Manager to allow only the Lambda function's execution role to decrypt
  2. Create a KMS customer managed key that trusts Secrets Manager and allows the Lambda function's execution role to decrypt. Update Secrets Manager to use the new customer managed key
  3. Create a KMS customer managed key that trusts Secrets Manager and allows the account's root principal to decrypt. Update Secrets Manager to use the new customer managed key
  4. Ensure that the Lambda function's execution role has the KMS permissions scoped on the resource level.
    Configure the permissions so that the KMS key can encrypt the Secrets Manager secret
  5. Remove all KMS permissions from the Lambda function's execution role

Answer(s): B,D



A company's DevOps engineer is creating an AWS Lambda function to process notifications from an Amazon Simple Notification Service (Amazon SNS) topic. The Lambda function will process the notification messages and will write the contents of the notification messages to an Amazon RDS Multi-AZ DB instance.

During testing, a database administrator accidentally shut down the DB instance. While the database was down the company lost several of the SNS notification messages that were delivered during that time.

The DevOps engineer needs to prevent the loss of notification messages in the future.

Which solutions will meet this requirement? (Choose two.)

  1. Replace the RDS Multi-AZ DB instance with an Amazon DynamoDB table.
  2. Configure an Amazon Simple Queue Service (Amazon SQS) queue as a destination of the Lambda function.
  3. Configure an Amazon Simple Queue Service (Amazon SQS) dead-letter queue for the SNS topic.
  4. Subscribe an Amazon Simple Queue Service (Amazon SQS) queue to the SNS topic. Configure the Lambda function to process messages from the SQS queue.
  5. Replace the SNS topic with an Amazon EventBridge event bus. Configure an EventBridge rule on the new event bus to invoke the Lambda function for each event.

Answer(s): C,D



A company has an application that runs on Amazon EC2 instances. The company uses an AWS CodePipeline pipeline to deploy the application into multiple AWS Regions. The pipeline is configured with a stage for each Region. Each stage contains an AWS CloudFormation action for each Region.

When the pipeline deploys the application to a Region, the company wants to confirm that the application is in a healthy state before the pipeline moves on to the next Region. Amazon Route 53 record sets are configured for the application in each Region. A DevOps engineer creates a Route 53 health check that is based on an Amazon CloudWatch alarm for each Region where the application is deployed.

What should the DevOps engineer do next to meet the requirements?

  1. Create an AWS Step Functions workflow to check the state of the CloudWatch alarm. Configure the Step Functions workflow to exit with an error if the alarm is in the ALARM state. Create a new stage in the pipeline between each Region deployment stage. In each new stage, include an action to invoke the Step Functions workflow.
  2. Configure an AWS CodeDeploy application to deploy a CloudFormation template with automatic rollback.
    Configure the CloudWatch alarm as the instance health check for the CodeDeploy application. Remove the CloudFormation actions from the pipeline. Create a CodeDeploy action in the pipeline stage for each Region.
  3. Create a new pipeline stage for each Region where the application is deployed. Configure a CloudWatch alarm action for the new stage to check the state of the CloudWatch alarm and to exit with an error if the alarm is in the ALARM state
  4. Configure the CloudWatch agent on the EC2 instances to report the application status to the Route 53 health check. Create a new pipeline stage for each Region where the application is deployed. Configure a CloudWatch alarm action to exit with an error if the CloudWatch alarm is in the ALARM state.

Answer(s): A



A company plans to use Amazon CloudWatch to monitor its Amazon EC2 instances. The company needs to stop EC2 instances when the average of the NetworkPacketsIn metric is less than 5 for at least 3 hours in a 12- hour time window. The company must evaluate the metric every hour. The EC2 instances must continue to run if there is missing data for the NetworkPacketsIn metric during the evaluation period.

A DevOps engineer creates a CloudWatch alarm for the NetworkPacketsIn metric. The DevOps engineer configures a threshold value of 5 and an evaluation period of 1 hour.

Which set of additional actions should the DevOps engineer take to meet these requirements?

  1. Configure the Datapoints to Alarm value to be 3 out of 12. Configure the alarm to treat missing data as breaching the threshold. Add an AWS Systems Manager action to stop the instance when the alarm enters the ALARM state.
  2. Configure the Datapoints to Alarm value to be 3 out of 12. Configure the alarm to treat missing data as not breaching the threshold. Add an EC2 action to stop the instance when the alarm enters the ALARM state.
  3. Configure the Datapoints to Alarm value to be 9 out of 12. Configure the alarm to treat missing data as breaching the threshold. Add an EC2 action to stop the instance when the alarm enters the ALARM state.
  4. Configure the Datapoints to Alarm value to be 9 out of 12. Configure the alarm to treat missing data as not breaching the threshold. Add an AWS Systems Manager action to stop the instance when the alarm enters the ALARM state.

Answer(s): B



A company manages 500 AWS accounts that are in an organization in AWS Organizations. The company discovers many unattached Amazon Elastic Block Store (Amazon EBS) volumes in all the accounts. The company wants to automatically tag the unattached EBS volumes for investigation.

A DevOps engineer needs to deploy an AWS Lambda function to all the AWS accounts. The Lambda function must run every 30 minutes to tag all the EBS volumes that have been unattached for a period of 7 days or more.

Which solution will meet these requirements in the MOST operationally efficient manner?

  1. Configure a delegated administrator account for the organization. Create an AWS CloudFormation template that contains the Lambda function. Use CloudFormation StackSets to deploy the CloudFormation template from the delegated administrator account to all the member accounts in the organization. Create an Amazon EventBridge event bus in the delegated administrator account to invoke the Lambda function in each member account every 30 minutes.
  2. Create a cross-account IAM role in the organization's member accounts. Attach the AWSLambda_FullAccess policy and the AWSCloudFormationFullAccess policy to the role. Create an AWS CloudFormation template that contains the Lambda function and an Amazon EventBridge scheduled rule to invoke the Lambda function every 30 minutes. Create a custom script in the organization's management account that assumes the role and deploys the CloudFormation template to the member accounts.
  3. Configure a delegated administrator account for the organization. Create an AWS CloudFormation template that contains the Lambda function and an Amazon EventBridge scheduled rule to invoke the Lambda function every 30 minutes. Use CloudFormation StackSets to deploy the CloudFormation template from the delegated administrator account to all the member accounts in the organization
  4. Create a cross-account IAM role in the organization's member accounts. Attach the AmazonS3FullAccess policy and the AWSCodeDeployDeployerAccess policy to the role. Use AWS CodeDeploy to assume the
    role to deploy the Lambda function from the organization's management account. Configure an Amazon EventBridge scheduled rule in the member accounts to invoke the Lambda function every 30 minutes.

Answer(s): C



A company's production environment uses an AWS CodeDeploy blue/green deployment to deploy an application. The deployment incudes Amazon EC2 Auto Scaling groups that launch instances that run Amazon Linux 2.

A working appspec.yml file exists in the code repository and contains the following text:



A DevOps engineer needs to ensure that a script downloads and installs a license file onto the instances before the replacement instances start to handle request traffic. The DevOps engineer adds a hooks section to the appspec.yml file.

Which hook should the DevOps engineer use to run the script that downloads and installs the license file?

  1. AfterBlockTraffic
  2. BeforeBlockTraffic
  3. BeforeInstall
  4. DownloadBundle

Answer(s): C



A company has an application that includes AWS Lambda functions. The Lambda functions run Python code that is stored in an AWS CodeCommit repository. The company has recently experienced failures in the production environment because of an error in the Python code. An engineer has written unit tests for the Lambda functions to help avoid releasing any future defects into the production environment.

The company's DevOps team needs to implement a solution to integrate the unit tests into an existing AWS CodePipeline pipeline. The solution must produce reports about the unit tests for the company to view.

Which solution will meet these requirements?

  1. Associate the CodeCommit repository with Amazon CodeGuru Reviewer. Create a new AWS CodeBuild project. In the CodePipeline pipeline, configure a test stage that uses the new CodeBuild project. Create a buildspec.yml file in the CodeCommit repository. In the buildspec yml file, define the actions to run a
    CodeGuru review.
  2. Create a new AWS CodeBuild project. In the CodePipeline pipeline, configure a test stage that uses the new CodeBuild project. Create a CodeBuild report group. Create a buildspec.yml file in the CodeCommit repository. In the buildspec.yml file, define the actions to run the unit tests with an output of JUNITXML in the build phase section. Configure the test reports to be uploaded to the new CodeBuild report group.
  3. Create a new AWS CodeArtifact repository. Create a new AWS CodeBuild project. In the CodePipeline pipeline, configure a test stage that uses the new CodeBuild project. Create an appspec.yml file in the original CodeCommit repository. In the appspec.yml file, define the actions to run the unit tests with an output of CUCUMBERJSON in the build phase section. Configure the tests reports to be sent to the new CodeArtifact repository.
  4. Create a new AWS CodeBuild project. In the CodePipeline pipeline, configure a test stage that uses the new CodeBuild project. Create a new Amazon S3 bucket. Create a buildspec.yml file in the CodeCommit repository. In the buildspec yml file, define the actions to run the unit tests with an output of HTML in the phases section. In the reports section, upload the test reports to the S3 bucket.

Answer(s): B



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