DOP-C02 practice questions 421–427

1. Question 421 · 427 in bank

   A company frequently creates Docker images of an application. The company stores the images in Amazon Elastic Container Registry (Amazon ECR). The company creates both tagged images and untagged images. The company wants to implement a solution to automatically delete images that have not been updated for a long time and are not frequently used. The solution must retain at least a specified number of images. Which solution will meet these requirements with the LEAST operational overhead?

   • AUse Amazon S3 Lifecycle policies on the ECR repository to automatically delete images based on image age or the absence of tags on the image.
   • BUse Amazon ECR lifecycle policies to delete images based on age or the number of images that need to be to retained in the repository.
   • CConfigure an AWS Lambda function to run a schedule to delete images based on age or the number of images that need to be retained in the repository.
   • DUse AWS Systems Manager to run a script by using the aws:executeScript action to automatically delete images based on image age or the absence of tags on the image.

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   Answer: B

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2. Question 422 · 427 in bank

   A company is developing a web application that runs on Amazon EC2 Linux instances. The application requires monitoring of custom performance metrics. The company must collect metrics for API response times and database query latency across multiple instances. Which solution will generate the custom metrics with the LEAST operational overhead?

   • AInstall the Amazon CloudWatch agent on the instances. Configure the agent to collect the custom metrics. Instrument the application to send the metrics to the agent.
   • BUse Amazon Managed Service for Prometheus to scrape the custom metrics from the application. Use the Amazon CloudWatch agent to forward the metrics to CloudWatch.
   • CCreate a custom AWS Lambda function that polls the application endpoints and database at regular intervals. Program the Lambda function to calculate the custom metrics and to send the metrics to Amazon CloudWatch by using PutMetricData API calls.
   • DImplement custom logging in the application code to record the custom metrics. Use Amazon CloudWatch Logs Insights to extract and analyze the metrics.

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   Answer: A

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3. Question 423 · 427 in bank

   A company uses AWS Lambda functions in the primary operating AWS Region of its AWS account. The company manually created the Lambda functions. The company needs to use a Python-based AWS Cloud Development Kit (AWS CDK) application to manage the Lambda functions. Which solution meets these requirements with the LEAST implementation effort?

   • AStart a partial scan by using the AWS CloudFormation infrastructure as code (IaC) generator. Filter by the Lambda resource type. Create an AWS CDK application from the scanned resources. Download the AWS CDK application. For each Lambda function, set the from_asset parameter for the Lambda handler code object.
   • BStart a partial scan by using the AWS CloudFormation infrastructure as code (IaC) generator. Filter by the Lambda resource type. Create a CloudFormation template from the scanned resources. Download the CloudFormation template. For each Lambda function, replace the Code/S3Bucket property and the Code/S3Key property with the Code/ZipFile property. Convert the CloudFormation template to an AWS CDK application.
   • CStart a partial scan by using the AWS CloudFormation infrastructure as code (IaC) generator. Filter by the Lambda resource type. Create a CloudFormation template from the scanned resources. Download the CloudFormation template. For each Lambda function, replace the Code/S3Bucket property and the Code/S3Key property with the Code/ImageUri property. Convert the CloudFormation template to an AWS CDK application.
   • DCreate a resource inventory by using AWS Config. Filter by the Lambda resource type. Export the inventory to a .csv file. Write an AWS CDK application that references the Lambda functions from the .csv file. For each Lambda function, set the from_asset parameter for the Lambda handler code object.

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   Answer: A

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4. Question 424 · 427 in bank

   A company uses Amazon Elastic Kubernetes Services (Amazon EKS) to host containerized applications that are available in Amazon Elastic Container Registry (Amazon ECR). The company currently launches EKS clusters in the company's development environment by using the AWS CLI aws eks create-cluster command. The company uses the aws eks create-addon command to install required add-ons. All installed add-ons are currently version compatible with the version of Kubernetes that the company uses. All clusters exclusively use managed node groups for compute capacity. Some of the EKS clusters require a version upgrade. A DevOps engineer must ensure that upgrades continuously occur within the AWS standard support schedule. Which solution will meet this requirement with the LEAST operational overhead?

   • ARun the aws eks update-cluster-version command. Providing appropriate arguments such as cluster name and version number.
   • BEnable EKS Auto Mode on all EKS clusters. Remove all existing managed node groups.
   • CRun the eksctl command to upgrade the EKS clusters. Provide appropriate arguments such as cluster name and version number
   • DRefactor the environment to create EKS clusters by using infrastructure as code (IaC). Upgrade the clusters by using code changes.

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   Answer: A

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5. Question 425 · 427 in bank

   A company produces builds for an open source project every day. The company hosts the open source project in a public code repository that the company supports. The company manually invokes a pipeline in AWS CodePipeline to build artifacts for the project. The company wants to make the build artifacts publicly available on a website that the company hosts in an Amazon S3 bucket. Which solution will meet these requirements with the LEAST operational overhead?

   • ACreate an AWS CodeBuild project. Set the public repository as the source. Use a webhook to rebuild when the company pushes a code change. Configure the artifacts section of the project to use the S3 bucket as the destination. Set up an appropriate path to store build outputs in the bucket. Disable artifact encryption.
   • BCreate an AWS CodeBuild project. Set the public repository as the source. Configure the artifacts section of the project to use the S3 bucket as the destination. Ensure that artifact encryption is enabled in the artifacts configuration. Configure an Amazon EventBridge rule to initiate the CodeBuild project on a daily schedule.
   • CAdd a new stage to the end of the pipeline. Configure the stage to include an action to publish artifacts to the S3 bucket. Update the pipeline to run in response to pull requests to the public repository.
   • DAdd a new stage to the end of the pipeline. Configure the stage to include an action to publish artifacts to the S3 bucket. Create an Amazon EventBridge rule to initiate the pipeline on a daily schedule.

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   Answer: D

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6. Question 426 · 427 in bank

   An ecommerce company hosts a web application on Amazon EC2 instances that are in an Auto Scaling group. The company deploys the application across multiple Availability Zones. Application users are reporting intermittent performance issues with the application. The company enables basic Amazon CloudWatch monitoring for the EC2 instances. The company identifies and implements a fix for the performance issues. After resolving the issues, the company wants to implement a monitoring solution that will quickly alert the company about future performance issues. Which solution will meet this requirement?

   • AEnable detailed monitoring for the EC2 instances. Create custom CloudWatch metrics for application-specific performance indicators. Set up CloudWatch alarms based on the custom metrics. Use CloudWatch Logs Insights to analyze application logs for error patterns.
   • BUse AWS X-Ray to implement distributed tracing. Integrate X-Ray with Amazon CloudWatch RUM. Use Amazon EventBridge to trigger automatic scaling actions based on custom events.
   • CUse Amazon CloudFront to deliver the application. Use AWS CloudTrail to monitor API calls. Use AWS Trusted Advisor to generate recommendations to optimize performance. Use Amazon GuardDuty to detect potential performance issues.
   • DEnable VPC Flow Logs. Use Amazon Data Firehose to stream flow logs to Amazon S3. Use Amazon Athena to analyze the logs and to send alerts to the company.

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   Answer: A

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7. Question 427 · 427 in bank

   Select 2

   A company deploys a web application on Amazon EC2 instances that are behind an Application Load Balancer (ALB). The company stores the application code in an AWS CodeConnections compatible Git repository. When the company merges code to the main branch, an AWS CodeBuild project is initiated. The CodeBuild project compiles the code, stores the packaged code in AWS CodeArtifact, and invokes AWS Systems Manager Run Command to deploy the packaged code to the EC2 instances. Previous deployments have resulted in defects, EC2 instances that were not running the latest version of the packaged code, and inconsistencies between instances. A DevOps engineer needs to improve the reliability of the deployment solution. Which combination of actions will meet this requirement? (Choose two.)

   • ACreate a pipeline in AWS CodePipeline that uses the Git repository as the source provider. Configure the pipeline to have parallel build and test stages. In the pipeline, pass the CodeBuild project output artifact to an AWS CodeDeploy action.
   • BCreate a pipeline in AWS CodePipeline that uses the Git repository as the source provider. Configure the pipeline to have a build stage followed by a test stage. In the pipeline, pass the CodeBuild project output artifact to an AWS CodeDeploy action.
   • CCreate an AWS CodeDeploy application and a deployment group to deploy the packaged code to the EC2 instances. Configure the ALB for the deployment group.
   • DCreate individual AWS Lambda functions that use AWS CodeDeploy instead of Systems Manager to run build, test, and deploy actions.
   • ECreate an Amazon S3 bucket. Modify the CodeBuild project to store the packages in the S3 bucket instead of in CodeArtifact. Use deploy actions in CodeDeploy to deploy the artifact to the EC2 instances.

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   Answer: BC

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DOP-C02 practice, question 421. 427 questions available.