DOP-C02 Amazon Web Services AWS Certified DevOps Engineer

AWS Certified DevOps Engineer - Professional

Last Update 14 hours ago Total Questions : 449

The AWS Certified DevOps Engineer - Professional content is now fully updated, with all current exam questions added 14 hours ago. Deciding to include DOP-C02 practice exam questions in your study plan goes far beyond basic test preparation.

You'll find that our DOP-C02 exam questions frequently feature detailed scenarios and practical problem-solving exercises that directly mirror industry challenges. Engaging with these DOP-C02 sample sets allows you to effectively manage your time and pace yourself, giving you the ability to finish any AWS Certified DevOps Engineer - Professional practice test comfortably within the allotted time.

Question # 1

A DevOps engineer used an AWS Cloud Formation custom resource to set up AD Connector. The AWS Lambda function ran and created AD Connector, but Cloud Formation is not transitioning from CREATE_IN_PROGRESS to CREATE_COMPLETE.

Which action should the engineer take to resolve this issue?

Ensure the Lambda function code has exited successfully.

Ensure the Lambda function code returns a response to the pre-signed URL.

Ensure the Lambda function IAM role has cloudformation UpdateStack permissions for the stack ARN.

Ensure the Lambda function IAM role has ds ConnectDirectory permissions for the AWS account.

Question # 2

A DevOps team supports an application that runs on a large number of Amazon EC2 instances in an Auto Scaling group. The DevOps team uses AWS CloudFormation to deploy the EC2 instances. The application recently experienced an issue. A single instance returned errors to a large percentage of requests. The EC2 instance responded as healthy to both Amazon EC2 and Elastic Load Balancing health checks. The DevOps team collects application logs in Amazon CloudWatch by using the embedded metric format. The DevOps team needs to receive an alert if any EC2 instance is responsible for more than half of all errors. Which combination of steps will meet these requirements with the LEAST operational overhead? (Select TWO.)

Create a CloudWatch Contributor Insights rule that groups logs from the CloudWatch application logs based on instance ID and errors.

Create a resource group in AWS Resource Groups. Use the CloudFormation stack to group the resources for the application. Add the application to CloudWatch Application Insights. Use the resource group to identify the application.

Create a metric filter for the application logs to count the occurrence of the term " Error. " Create a CloudWatch alarm that uses the METRIC_COUNT function to determine whether errors have occurred. Configure the CloudWatch alarm to send a notification to an Amazon Simple Notification Service (Amazon SNS) topic to notify the DevOps team.

Create a CloudWatch alarm that uses the INSIGHT_RULE_METRIC function to determine whether a specific instance is responsible for more than half of all errors reported by EC2 instances. Configure the CloudWatch alarm to send a notification to an Amazon Simple Notification Service (Amazon SNS) topic to notify the DevOps team.

Create a CloudWatch subscription filter for the application logs that filters for errors and invokes an AWS Lambda function. Configure the Lambda function to send the instance ID and error in a notification to an Amazon Simple Notification Service (Amazon SNS) topic to notify the DevOps team.

Question # 3

A company is using AWS CodeDeploy to deploy an application to Amazon EC2 instances in an Auto Scaling group. The company configures the Auto Scaling group by using an EC2 launch template that references a custom AMI that has the CodeDeploy agent installed. The company updates the AMI weekly, and all EC2 instances are replaced with new instances that are launched from the updated AMI. The company requires each EC2 instance to be tagged with an application tag that identifies the application that is deployed on the instance. Currently, the company manually tags the EC2 instances.

To deploy the application, the company creates a CodeDeploy application and a deployment group. The company sets a custom resource tag in the deployment group and configures the deployment group to target the Auto Scaling group. The company must ensure that each instance in the Auto Scaling group is tagged with the appropriate application tag.

Which solution will meet this requirement?

Create a tag specification in the EC2 launch template and set the resource type to applications. Configure the tag specification to apply the custom resource tag. Update the Auto Scaling group to use the most recent version of the EC2 launch template. Perform an instance refresh in the Auto Scaling group.

Configure the process that creates the custom AMI to tag the AMI with the custom resource tag. Create a new version of the AMI. Update the Auto Scaling group to use the new version of the AMI. Perform an instance refresh in the Auto Scaling group.

Configure the CodeDeploy deployment group to include a tag specification that applies the custom resource tag. Configure the Auto Scaling group to propagate the tag when instances are launched. Create a new deployment in the deployment group that specifies the EC2 instance IDs as target instances.

Create a tag specification in the EC2 launch template and set the resource type to instances. Configure the tag specification to apply the custom resource tag. Update the Auto Scaling group to use the most recent version of the EC2 launch template. Perform an instance refresh in the Auto Scaling group.

Question # 4

A company ' s application development team uses Linux-based Amazon EC2 instances as bastion hosts. Inbound SSH access to the bastion hosts is restricted to specific IP addresses, as defined in the associated security groups. The company ' s security team wants to receive a notification if the security group rules are modified to allow SSH access from any IP address.

What should a DevOps engineer do to meet this requirement?

Create an Amazon EventBridge rule with a source of aws.cloudtrail and the event name AuthorizeSecurityGroupIngress. Define an Amazon Simple Notification Service (Amazon SNS) topic as the target.

Enable Amazon GuardDuty and check the findings for security groups in AWS Security Hub. Configure an Amazon EventBridge rule with a custom pattern that matches GuardDuty events with an output of NON_COMPLIANT. Define an Amazon Simple Notification Service (Amazon SNS) topic as the target.

Create an AWS Config rule by using the restricted-ssh managed rule to check whether security groups disallow unrestricted incoming SSH traffic. Configure automatic remediation to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic.

Enable Amazon Inspector. Include the Common Vulnerabilities and Exposures-1.1 rules package to check the security groups that are associated with the bastion hosts. Configure Amazon Inspector to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic.

Question # 5

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?

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.

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.

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.

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.

Question # 6

A developer is using the AWS Serverless Application Model (AWS SAM) to create a prototype for an AWS Lambda function. The AWS SAM template contains an AWS::Serverless::Function resource that has the CodeUri property pointing to an Amazon S3 location. The developer wants to identify the correct commands for deployment before creating a CI/CD pipeline.

The developer creates an archive of the Lambda function code named package.zip, uploads the .zip file archive to the S3 location specified in the CodeUri property, and runs the sam deploy command to deploy the Lambda function. The developer updates the Lambda function code and uses the same steps to deploy the new version. The sam deploy command fails and returns an error of " no changes to deploy. "

Which solutions will deploy the new version? (Select TWO.)

Use the aws cloudformation update-stack command instead of the sam deploy command.

Use the aws cloudformation update-stack-instances command instead of the sam deploy command.

Update the CodeUri property to reference the local application code folder. Use the sam deploy command.

Update the CodeUri property to reference the local application code folder. Use the aws cloudformation create-change-set command and the aws cloudformation execute-change-set command.

Update the CodeUri property to reference the local application code folder. Use the aws cloudformation package command and the aws cloudformation deploy command.

Question # 7

A company has deployed an Amazon Elastic Kubernetes Service (Amazon EKS) cluster with Amazon EC2 node groups. The company ' s DevOps team uses the Kubernetes Horizontal Pod Autoscaler and recently installed a supported EKS cluster Autoscaler.

The DevOps team needs to implement a solution to collect metrics and logs of the EKS cluster to establish a baseline for performance. The DevOps team will create an initial set of thresholds for specific metrics and will update the thresholds over time as the cluster is used. The DevOps team must receive an Amazon Simple Notification Service (Amazon SNS) email notification if the initial set of thresholds is exceeded or if the EKS cluster Autoscaler is not functioning properly.

The solution must collect cluster, node, and pod metrics. The solution also must capture logs in Amazon CloudWatch.

Which combination of steps should the DevOps team take to meet these requirements? (Select THREE.)

Deploy the CloudWatch agent and Fluent Bit to the cluster. Ensure that the EKS cluster has appropriate permissions to send metrics and logs to CloudWatch.

Deploy AWS Distro for OpenTelemetry to the cluster. Ensure that the EKS cluster has appropriate permissions to send metrics and logs to CloudWatch.

Create CloudWatch alarms to monitor the CPU, memory, and node failure metrics of the cluster. Configure the alarms to send an SNS email notification to the DevOps team if thresholds are exceeded.

Create a CloudWatch composite alarm to monitor a metric log filter of the CPU, memory, and node metrics of the cluster. Configure the alarm to send an SNS email notification to the DevOps team when anomalies are detected.

Create a CloudWatch alarm to monitor the logs of the Autoscaler deployments for errors. Configure the alarm to send an SNS email notification to the DevOps team if thresholds are exceeded.

Create a CloudWatch alarm to monitor a metric log filter of the Autoscaler deployments for errors. Configure the alarm to send an SNS email notification to the DevOps team if thresholds are exceeded.

Question # 8

A company requires all its employees to access secrets and parameters through AWS Systems Manager Parameter Store. All secrets must automatically rotate every 60 days.

A DevOps engineer must add a new secret to give an application access to an Amazon ElastiCache (Redis OSS) cluster.

Which solution will meet these requirements with the LEAST operational overhead?

Create the secret in AWS Secrets Manager. Enable rotation. Set the rotation frequency to 60 days. Configure the application to reference the secret value by using the fully qualified path in Parameter Store.

Create the secret in Parameter Store. Enable automatic rotation. Set the rotation frequency to 60 days. Configure the application to reference the secret value by using the fully qualified path in Parameter Store.

Create the secret in Parameter Store. Create an AWS Lambda function to rotate the secret. Configure an Amazon EventBridge event to invoke the Lambda function every 60 days. Configure the application to provide the unique secret name to Parameter Store to retrieve the secret.

Create the secret in AWS Secrets Manager. Enable rotation by AWS Lambda function. Use the Secrets Manager provided template for ElastiCache (Redis OSS) secrets. Set the rotation schedule to 60 days. Set a rotation window duration in Secrets Manager. Configure the application to provide the full reserved path to Parameter Store when the application accesses the secret.

Question # 9

A company uses AWS Storage Gateway in file gateway mode in front of an Amazon S3 bucket that is used by multiple resources. In the morning when business begins, users do not see the objects processed by a third party the previous evening. When a DevOps engineer looks directly at the S3 bucket, the data is there, but it is missing in Storage Gateway.

Which solution ensures that all the updated third-party files are available in the morning?

Configure a nightly Amazon EventBridge event to invoke an AWS Lambda function to run the RefreshCache command for Storage Gateway.

Instruct the third party to put data into the S3 bucket using AWS Transfer for SFTP.

Modify Storage Gateway to run in volume gateway mode.

Use S3 Same-Region Replication to replicate any changes made directly in the S3 bucket to Storage Gateway.

Question # 10

A company ' s security policies require the use of security hardened AMIS in production environments. A DevOps engineer has used EC2 Image Builder to create a pipeline that builds the AMIs on a recurring schedule.

The DevOps engineer needs to update the launch templates of the companys Auto Scaling groups. The Auto Scaling groups must use the newest AMIS during the launch of Amazon EC2 instances.

Which solution will meet these requirements with the MOST operational efficiency?

Configure an Amazon EventBridge rule to receive new AMI events from Image Builder. Target an AWS Systems Manager Run Command document that updates the launch templates of the Auto Scaling groups with the newest AMI ID.

Configure an Amazon EventBridge rule to receive new AMI events from Image Builder. Target an AWS Lambda function that updates the launch templates of the Auto Scaling groups with the newest AMI ID.

Configure the launch template to use a value from AWS Systems Manager Parameter Store for the AMI ID. Configure the Image Builder pipeline to update the Parameter Store value with the newest AMI ID.

Configure the Image Builder distribution settings to update the launch templates with the newest AMI ID. Configure the Auto Scaling groups to use the newest version of the launch template.