Summer Certification Sale 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: save70

Helping Hand Questions for DOP-C02

Page: 13 / 33
Total 449 questions

AWS Certified DevOps Engineer - Professional Questions and Answers

Question 49

A company uses the AWS Cloud Development Kit (AWS CDK) to define its application. The company uses a pipeline that consists of AWS CodePipeline and AWS CodeBuild to deploy the CDK application. The company wants to introduce unit tests to the pipeline to test various infrastructure components. The company wants to ensure that a deployment proceeds if no unit tests result in a failure.

Which combination of steps will enforce the testing requirement in the pipeline? (Select TWO.)

Options:

A.

Update the CodeBuild build phase commands to run the tests then to deploy the application. Set the OnFailure phase property to ABORT.

B.

Update the CodeBuild build phase commands to run the tests then to deploy the application. Add the --rollback true flag to the cdk deploy command.

C.

Update the CodeBuild build phase commands to run the tests then to deploy the application. Add the --require-approval any-change flag to the cdk deploy command.

D.

Create a test that uses the AWS CDK assertions module. Use the template.hasResourceProperties assertion to test that resources have the expected properties.

E.

Create a test that uses the cdk diff command. Configure the test to fail if any resources have changed.

Question 50

A company is performing vulnerability scanning for all Amazon EC2 instances across many accounts. The accounts are in an organization in AWS Organizations. Each account ' s VPCs are attached to a shared transit gateway. The VPCs send traffic to the internet through a central egress VPC. The company has enabled Amazon Inspector in a delegated administrator account and has enabled scanning for all member accounts.

A DevOps engineer discovers that some EC2 instances are listed in the " not scanning " tab in Amazon Inspector.

Which combination of actions should the DevOps engineer take to resolve this issue? (Choose three.)

Options:

A.

Verify that AWS Systems Manager Agent is installed and is running on the EC2 instances that Amazon Inspector is not scanning.

B.

Associate the target EC2 instances with security groups that allow outbound communication on port 443 to the AWS Systems Manager service endpoint.

C.

Grant inspector: StartAssessmentRun permissions to the IAM role that the DevOps engineer is using.

D.

Configure EC2 Instance Connect for the EC2 instances that Amazon Inspector is not scanning.

E.

Associate the target EC2 instances with instance profiles that grant permissions to communicate with AWS Systems Manager.

F.

Create a managed-instance activation. Use the Activation Code and the Activation ID to register the EC2 instances.

Question 51

A company recently migrated its legacy application from on-premises to AWS. The application is hosted on Amazon EC2 instances behind an Application Load Balancer which is behind Amazon API Gateway. The company wants to ensure users experience minimal disruptions during any deployment of a new version of the application. The company also wants to ensure it can quickly roll back updates if there is an issue.

Which solution will meet these requirements with MINIMAL changes to the application?

Options:

A.

Introduce changes as a separate environment parallel to the existing one Configure API Gateway to use a canary release deployment to send a small subset of user traffic to the new environment.

B.

Introduce changes as a separate environment parallel to the existing one Update the application ' s DNS alias records to point to the new environment.

C.

Introduce changes as a separate target group behind the existing Application Load Balancer Configure API Gateway to route user traffic to the new target group in steps.

D.

Introduce changes as a separate target group behind the existing Application Load Balancer Configure API Gateway to route all traffic to the Application Load Balancer which then sends the traffic to the new target group.

Question 52

A company has implemented a new microservices-based application on an Amazon Elastic Container Service (Amazon ECS) cluster. After each deployment, the company wants to validate the critical user journeys and API endpoints before routing traffic to the new application version.

The company must implement an automated solution to detect issues in the new deployment and to initiate a rollback if necessary.

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

Options:

A.

Set up Amazon CloudWatch Application Insights for the ECS cluster. Create an Amazon EventBridge rule to invoke an AWS Lambda function to analyze the task states. Program the Lambda function to use the ECS UpdateService API call to initiate a rollback if a specific percentage of tasks fail.

B.

Set up Amazon CloudWatch Application Insights for the ECS cluster. Configure Application Insights to monitor key performance indicators of the microservices in the critical user journeys and API calls. Create CloudWatch alarms based on the insights. Use EventBridge to invoke an AWS Step Functions workflow to evaluate the alarms. Configure the workflow to initiate a rollback if necessary by using the alarms ' built-in integration w

C.

Create CloudWatch Synthetics canaries that simulate critical user journeys and API calls. Implement AWS X-Ray tracing for all the microservices. Configure X-Ray to send traces to CloudWatch. Create CloudWatch alarms based on error rates and latency metrics. Create a Lambda function to analyze the traces and to initiate a rollback if necessary by using the alarms ' built-in integration with Amazon ECS.

D.

Create CloudWatch Synthetics canaries that simulate critical user journeys and API calls. Configure the canaries to run against the new deployment. Create CloudWatch alarms that are invoked when canaries fail. Use the alarms ' built-in integration with Amazon ECS to initiate a rollback if the alarms are invoked before traffic is routed to the new deployment.

Page: 13 / 33
Total 449 questions