A DevOps engineer wants to nd a solution to migrate an application from on premises to AWS. The application is running on Linux and needs to run on speci c versions of Apache Tomcat, HAProxy, and Varnish Cache to function properly. The application's operating system-level parameters require tuning. The solution must include a way to automate the deployment of new application versions. The infrastructure should be scalable and faulty servers should be replaced automatically.Which solution should the DevOps engineer use?
Answer(s): D
A company wants to use AWS CloudFormation for infrastructure deployment. The company has strict tagging and resource requirements and wants to limit the deployment to two Regions. Developers will need to deploy multiple versions of the same application. Which solution ensures resources are deployed in accordance with company policy?
https://aws.amazon.com/blogs/aws/use-cloudformation-stacksets-to-provision-resources-across-multiple-aws-accounts-and-regions/
A DevOps Engineer must track the health of a stateless RESTful service sitting behind a Classic Load Balancer. The deployment of new application revisions is through a CI/CD pipeline. If the service's latency increases beyond a de ned threshold, deployment should be stopped until the service has recovered.Which of the following methods allow for the QUICKEST detection time?
Answer(s): A
https://docs.amazonaws.cn/en_us/elasticloadbalancing/latest/application/load-balancercloudwatch-metrics.html
An AWS CodePipeline pipeline has implemented a code release process. The pipeline is integrated with AWS CodeDeploy to deploy versions of an application to multiple Amazon EC2 instances for each CodePipeline stage.During a recent deployment, the pipeline failed due to a CodeDeploy issue. The DevOps team wants to improve monitoring and noti cations during deployment to decrease resolution times.What should the DevOps Engineer do to create noti cations when issues are discovered?
Answer(s): B
A development team is using AWS CodeCommit to version control application code and AWS CodePipeline to orchestrate software deployments. The team has decided to use a remote master branch as the trigger for the pipeline to integrate code changes. A developer has pushed code changes to the CodeCommit repository, but noticed that the pipeline had no reaction, even after 10 minutes.Which of the following actions should be taken to troubleshoot this issue?
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