DOP-C01 (Page 2)

A company is running a custom-built application that processes records.All the components run on Amazon EC2 instances that run in an Auto Scaling group.Each record’s processing is a multistep sequential action that is compute-intensive.Each step is always completed in 5 minutes or less.A limitation of the current system is that if any steps fail, the application has to reprocess the record from the beginning.The company wants to update the architecture so that the application must reprocess only the failed steps.What is the MOST operationally efficient solution that meets these requirements?Read More →

A DevOps engineer is architecting a continuous development strategy for a company’s software as a service (SaaS) web application running on AWS.For application and security reasons, users subscribing to this application are distributed across multiple Application Load Balancers (ALBs), each of which has a dedicated Auto Scaling group and fleet of Amazon EC2 instances.The application does not require a build stage, and when it is committed to AWS CodeCommit, the application must trigger a simultaneous deployment to all ALBs, Auto Scaling groups, and EC2 fleets.Which architecture will meet these requirements with the LEAST amount of configuration?Read More →

An IT team has built an AWS CloudFormation template so others in the company can quickly and reliably deploy and terminate an application.The template creates an Amazon EC2 instance with a user data script to install the application and an Amazon S3 bucket that the application uses to serve static webpages while it is running.All resources should be removed when the CloudFormation stack is deleted.However, the team observes that CloudFormation reports an error during stack deletion, and the S3 bucket created by the stack is not deleted.How can the team resolve the error in the MOST efficient manner to ensure that all resources are deleted without errors?Read More →

A company has an application that runs on current-generation Amazon EC2 instances in a VPC.The EC2 instances run Amazon Linux and are launched in an Amazon EC2 Auto Scaling group.The application retrieves data from an Amazon S3 bucket, processes the data, and uploads the processed data to a different S3 bucket.Recently, the application’s performance worsened.A manual investigation identified that outbound network bandwidth utilization was too high for the type of EC2 instance.The company updated the EC2 instances to a larger EC2 instance size.The company’s DevOps team needs to receive notification from an Amazon CloudWatch alarm if the application attempts to use more outbound network bandwidth than is available to the EC2 instances.Which solution will meet these requirements?Read More →

A highly regulated company has a policy that DevOps Engineers should not log in to their Amazon EC2 instances except in emergencies.If a DevOps Engineer does log in, the Security team must be notified within 15 minutes of the occurrence.Which solution will meet these requirements?Read More →

A DevOps engineer has automated a web service deployment by using AWS CodePipeline with the following steps:1.An AWS CodeBuild project compiles the deployment artifact and runs unit tests.2.An AWS CodeDeploy deployment group deploys the web service to Amazon EC2 instances in the staging environment.3.A CodeDeploy deployment group deploys the web service to EC2 instances in the production environment.The quality assurance (QA) team requests permission to inspect the build artifact before the deployment to the production environment occurs.The QA team wants to run an internal penetration testing tool to conduct manual tests.The tool will be invoked by a REST API call.Which combination of actions should the DevOps engineer take to fulfill this request? (Choose two.)Read More →

A company uses AWS Organizations to manage multiple accounts.Information security policies require that all unencrypted Amazon EBS volumes be marked as non-compliant.A DevOps engineer needs to automatically deploy the solution and ensure that this compliance check is always present.With solution will accomplish this?Read More →

A company develops and maintains a web application using Amazon EC2 instances and an Amazon RDS for SQL Server DB instance in a single AvailabilityZone.The resources need to run only when new deployments are being tested using AWS CodePipeline.Testing occurs one or more times a week and each test takes 2-3 hours to run.A DevOps engineer wants a solution that does not change the architecture components.Which solution will meet these requirements in the MOST cost-effective manner?Read More →

A company has an on-premises that is written in Go.A DevOps engineer must move the application to AWS.The company’s development team wants to enable blue/green deployments and perform A/B testing.Which solution will meet these requirements?Read More →

A DevOps engineer is designing a multi-Region disaster recovery strategy for an application.The application requires an RPO of 1 hour and requires an RTO of 4 hours.The application is deployed with an AWS CloudFormation template that creates an Application Load Balancer (ALB), Amazon EC2 instances in an Auto Scaling group and an Amazon RDS Multi-AZ DB instance with 20 GB of allocated storage.The AMI of the application instance does not contain data and has been copied to the destination Region.Which combination of actions will meet the recovery objectives at the LOWEST cost? (Choose two.)Read More →