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DOP-C02 Exam Dumps - Amazon Web Services AWS Certified Professional Questions and Answers

Question # 4

A DevOps team manages an API running on-premises that serves as a backend for an Amazon API Gateway endpoint. Customers have been complaining about high response latencies, which the development team has verified using the API Gateway latency metrics in Amazon CloudWatch. To identify the cause, the team needs to collect relevant data without introducing additional latency.

Which actions should be taken to accomplish this? (Choose two.)

Options:

A.

Install the CloudWatch agent server side and configure the agent to upload relevant logs to CloudWatch.

B.

Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and upload those segments to X-Ray during each request.

C.

Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and use the X-Ray daemon to upload segments to X-Ray.

D.

Modify the on-premises application to send log information back to API Gateway with each request.

E.

Modify the on-premises application to calculate and upload statistical data relevant to the API service requests to CloudWatch metrics.

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Question # 5

A company has developed a static website hosted on an Amazon S3 bucket. The website is deployed using AWS CloudFormation. The CloudFormation template defines an S3 bucket and a custom resource that copies content into the bucket from a source location.

The company has decided that it needs to move the website to a new location, so the existing CloudFormation stack must be deleted and re-created. However, CloudFormation reports that the stack could not be deleted cleanly.

What is the MOST likely cause and how can the DevOps engineer mitigate this problem for this and future versions of the website?

Options:

A.

Deletion has failed because the S3 bucket has an active website configuration. Modify the Cloud Formation template to remove the WebsiteConfiguration properly from the S3 bucket resource.

B.

Deletion has failed because the S3 bucket is not empty. Modify the custom resource ' s AWS Lambda function code to recursively empty the bucket when RequestType is Delete.

C.

Deletion has failed because the custom resource does not define a deletion policy. Add a DeletionPolicy property to the custom resource definition with a value of RemoveOnDeletion.

D.

Deletion has failed because the S3 bucket is not empty. Modify the S3 bucket resource in the CloudFormation template to add a DeletionPolicy property with a value of Empty.

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Question # 6

A company has a mobile application that makes HTTP API calls to an Application Load Balancer (ALB). The ALB routes requests to an AWS Lambda function. Many different versions of the application are in use at any given time, including versions that are in testing by a subset of users. The version of the application is defined in the user-agent header that is sent with all requests to the API.

After a series of recent changes to the API, the company has observed issues with the application. The company needs to gather a metric for each API operation by response code for each version of the application that is in use. A DevOps engineer has modified the Lambda function to extract the API operation name, version information from the user-agent header and response code.

Which additional set of actions should the DevOps engineer take to gather the required metrics?

Options:

A.

Modify the Lambda function to write the API operation name, response code, and version number as a log line to an Amazon CloudWatch Logs log group. Configure a CloudWatch Logs metric filter that increments a metric for each API operation name. Specify response code and application version as dimensions for the metric.

B.

Modify the Lambda function to write the API operation name, response code, and version number as a log line to an Amazon CloudWatch Logs log group. Configure a CloudWatch Logs Insights query to populate CloudWatch metrics from the log lines. Specify response code and application version as dimensions for the metric.

C.

Configure the ALB access logs to write to an Amazon CloudWatch Logs log group. Modify the Lambda function to respond to the ALB with the API operation name, response code, and version number as response metadata. Configure a CloudWatch Logs metric filter that increments a metric for each API operation name. Specify response code and application version as dimensions for the metric.

D.

Configure AWS X-Ray integration on the Lambda function. Modify the Lambda function to create an X-Ray subsegment with the API operation name, response code, and version number. Configure X-Ray insights to extract an aggregated metric for each API operation name and to publish the metric to Amazon CloudWatch. Specify response code and application version as dimensions for the metric.

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Question # 7

A global company manages multiple AWS accounts by using AWS Control Tower. The company hosts internal applications and public applications.

Each application team in the company has its own AWS account for application hosting. The accounts are consolidated in an organization in AWS Organizations. One of the AWS Control Tower member accounts serves as a centralized DevOps account with CI/CD pipelines that application teams use to deploy applications to their respective target AWS accounts. An 1AM role for deployment exists in the centralized DevOps account.

An application team is attempting to deploy its application to an Amazon Elastic Kubernetes Service (Amazon EKS) cluster in an application AWS account. An 1AM role for deployment exists in the application AWS account. The deployment is through an AWS CodeBuild project that is set up in the centralized DevOps account. The CodeBuild project uses an 1AM service role for CodeBuild. The deployment is failing with an Unauthorized error during attempts to connect to the cross-account EKS cluster from CodeBuild.

Which solution will resolve this error?

Options:

A.

Configure the application account ' s deployment 1AM role to have a trust relationship with the centralized DevOps account. Configure the trust relationship to allow the sts:AssumeRole action. Configure the application account ' s deployment 1AM role to have the required access to the EKS cluster. Configure the EKS cluster aws-auth ConfigMap to map the role to the appropriate system permissions.

B.

Configure the centralized DevOps account ' s deployment I AM role to have a trust relationship with the application account. Configure the trust relationship to allow the sts:AssumeRole action. Configure the centralized DevOps account ' s deployment 1AM role to allow the required access to CodeBuild.

C.

Configure the centralized DevOps account ' s deployment 1AM role to have a trust relationship with the application account. Configure the trust relationship to allow the sts:AssumeRoleWithSAML action. Configure the centralized DevOps account ' s deployment 1AM role to allow the required access to CodeBuild.

D.

Configure the application account ' s deployment 1AM role to have a trust relationship with the AWS Control Tower management account. Configure the trust relationship to allow the sts:AssumeRole action. Configure the application account ' s deployment 1AM role to have the required access to the EKS cluster. Configure the EKS cluster aws-auth ConfigMap to map the role to the appropriate system permissions.

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Question # 8

A DevOps engineer needs to implement a solution to install antivirus software on all the Amazon EC2 instances in an AWS account. The EC2 instances run the most recent version of Amazon Linux .

The solution must detect all instances and must use an AWS Systems Manager document to install the software if the software is not present.

Which solution will meet these requirements?

Options:

A.

Create an association in Systems Manager State Manager . Target all the managed nodes. Include the software in the association. Configure the association to use the Systems Manager document.

B.

Set up AWS Config to record all the resources in the account. Create an AWS Config custom rule to determine if the software is installed on all the EC2 instances. Configure an automatic remediation action that uses the Systems Manager document for noncompliant EC2 instances.

C.

Activate Amazon EC2 scanning on Amazon Inspector to determine if the software is installed on all the EC2 instances. Associate the findings with the Systems Manager document.

D.

Create an Amazon EventBridge rule that uses AWS CloudTrail to detect the RunInstances API call. Configure inventory collection in Systems Manager Inventory to determine if the software is installed on the EC2 instances. Associate the Systems Manager Inventory with the Systems Manager document.

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Question # 9

A company is experiencing failures in its AWS CodeDeploy deployments for a critical application. The application is deployed on Amazon EC2 instances. A DevOps engineer must analyze the failed deployments to identify the root cause of the failures.

Which solution will provide the appropriate information to troubleshoot the deployment issues?

Options:

A.

Configure VPC Flow Logs to monitor network traffic. Use Amazon Inspector to detect non-network deployment issues. Use Amazon Detective to analyze the findings.

B.

Enable detailed monitoring on the EC2 instances. Use AWS Systems Manager Run Command to run troubleshooting scripts on all the EC2 instances simultaneously. Analyze the results in AWS CloudTrail logs.

C.

Use Amazon CloudWatch Logs to review application logs. Analyze CodeDeploy deployment logs in the /opt/codedeploy-agent/deployment-root/ directory on the EC2 instances. Use AWS X-Ray to trace requests through the application components.

D.

Examine AWS Trusted Advisor checks for the CodeDeploy deployments. Use the AWS Health Dashboard to monitor application health. Analyze performance metrics in Amazon CloudWatch dashboards.

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Question # 10

A software as a service (SaaS) company uses an Amazon Elastic Container Service (Amazon ECS) cluster behind an Application Load Balancer (ALB) to provide real-time analytics services to clients. The company is using AWS CodePipeline and AWS CodeDeploy to set up a blue/green deployment process for the solution.

The company wants the deployment process to automatically shift traffic in equal increments over a specified total deployment time without any manual intervention. The deployment must ensure zero downtime and provide seamless traffic shifting.

Which solution will meet these requirements?

Options:

A.

Set the TrafficRoutingConfig parameter to TimeBasedLinear in the appspec.yaml file of the CodeDeploy application that the company uses to deploy the ECS services. Set values for the linearPercentage parameter and the linearInterval parameter.

B.

Update the TrafficRoutingConfig parameter of the appspec.yaml file of the CodeDeploy application that the company uses to deploy the ECS services to the AllAtOnce type.

C.

Create a deployment group configuration. Set the TrafficRoutingConfig parameter to the TimeBasedCanary type. Configure listener rules on the ALB to forward traffic to the target groups based on specified weights.

D.

Set up a deployment configuration in CodeDeploy. Configure weighted routing on the ALB during deployment.

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Question # 11

A company has a guideline that every Amazon EC2 instance must be launched from an AMI that the company ' s security team produces. Every month, the security team sends an email message with the latest approved AMIs to all the development teams. The development teams use AWS CloudFormation to deploy their applications. When developers launch a new service, they have to search their email for the latest AMIs that the security department sent. A DevOps engineer wants to automate the process that the security team uses to provide the AMI IDs to the development teams. What is the MOST scalable solution that meets these requirements?

Options:

A.

Direct the security team to use CloudFormation to create new versions of the AMIs and to list the AMI ARNs in an encrypted Amazon S3 object as part of the stack ' s Outputs section. Instruct the developers to use a cross-stack reference to load the encrypted S3 object and obtain the most recent AMI ARNs.

B.

Direct the security team to use a CloudFormation stack to create an AWS CodePipeline pipeline that builds new AMIs and places the latest AMI ARNs in an encrypted Amazon S3 object as part of the pipeline output. Instruct the developers to use a cross-stack reference within their own CloudFormation template to obtain the S3 object location and the most recent AMI ARNs.

C.

Direct the security team to use Amazon EC2 Image Builder to create new AMIs and to place the AMI ARNs as parameters in AWS Systems Manager Parameter Store. Instruct the developers to specify a parameter of type SSM in their CloudFormation stack to obtain the most recent AMI ARNs from Parameter Store.

D.

Direct the security team to use Amazon EC2 Image Builder to create new AMIs and to create an Amazon Simple Notification Service (Amazon SNS) topic so that every development team can receive notifications. When the development teams receive a notification, instruct them to write an AWS Lambda function that will update their CloudFormation stack with the most recent AMI ARNs.

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Question # 12

A company uses an Amazon Elastic Kubernetes Service (Amazon EKS) cluster to host its machine learning (ML) application. As the ML model and the container image size grow, the time that new pods take to start up has increased to several minutes.

A DevOps engineer needs to reduce the startup time to seconds. The solution must also reduce the startup time to seconds when the pod runs on nodes that were recently added to the cluster.

The DevOps engineer creates an Amazon EventBridge rule that invokes an automation in AWS Systems Manager. The automation prefetches the container images from an Amazon Elastic Container Registry (Amazon ECR) repository when new images are pushed to the repository. The DevOps engineer also configures tags to be applied to the cluster and the node groups.

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

Options:

A.

Create an IAM role that has a policy that allows EventBridge to use Systems Manager to run commands in the EKS cluster ' s control plane nodes. Create a Systems Manager State Manager association that uses the control plane nodes ' tags to prefetch corresponding container images.

B.

Create an IAM role that has a policy that allows EventBridge to use Systems Manager to run commands in the EKS cluster ' s nodes. Create a Systems Manager State Manager association that uses the nodes ' machine size to prefetch corresponding container images.

C.

Create an IAM role that has a policy that allows EventBridge to use Systems Manager to run commands in the EKS cluster ' s nodes. Create a Systems Manager State Manager association that uses the nodes ' tags to prefetch corresponding container images.

D.

Create an IAM role that has a policy that allows EventBridge to use Systems Manager to run commands in the EKS cluster ' s control plane nodes. Create a Systems Manager State Manager association that uses the nodes ' tags to prefetch corresponding container images.

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Question # 13

A company runs an application that uses an Amazon S3 bucket to store images. A DevOps engineer needs to implement a multi-Region disaster recovery (DR) strategy for the S3 objects. The DevOps engineer enables two-way replication between the S3 buckets.

The company must be able to fail over to a second S3 bucket that is in a second AWS Region. When an image is added to either S3 bucket, the image must be replicated to the other S3 bucket within 15 minutes .

Which combination of steps will meet these requirements in the MOST operationally efficient way? ( Select THREE. )

Options:

A.

Enable S3 Replication Time Control (S3 RTC) for each replication rule used in the configuration.

B.

Create an S3 Multi-Region Access Point in an active-passive configuration.

C.

Call the SubmitMultiRegionAccessPointRoutes operation in the Amazon S3 API when the company needs to fail over to the S3 bucket in the second Region.

D.

Enable S3 Transfer Acceleration on both S3 buckets.

E.

Configure a routing control in Amazon Route 53 Application Recovery Controller (ARC) . Add both S3 buckets in an active-passive configuration.

F.

Use Amazon Route 53 Application Recovery Controller (ARC) to shift traffic from the primary bucket to the failover bucket in the second Region.

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Exam Code: DOP-C02
Exam Name: AWS Certified DevOps Engineer - Professional
Last Update: Apr 8, 2026
Questions: 425
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