DOP-C01 (Page 17)

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 →

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 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 →

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 building a continuous deployment pipeline for a serverless application that uses AWS Lambda functions.The company wants to reduce the customer impact of an unsuccessful deployment.The company also wants to monitor for issues.Which deploy stage configuration will meet these requirements?Read More →

A company wants to use a grid system for proprietary enterprise in-memory data store on top of AWS.The system can run in multiple server nodes in any Linux-based distribution.The system must be able to reconfigure the entire cluster every time a node is added or removed.When adding or removing nodes, an /etc/cluster/nodes.config file must be updated listing the IP addresses of the current node member of that cluster.The company wants to automate the task of adding new nodes to a cluster.What can a DevOps engineer do to meet these requirements?Read More →

A company uses Amazon S3 to store proprietary information.The development team creates buckets for new projects on a daily basis.The security team wants to ensure that all existing and future buckets have encryption, logging, and versioning enabled.Additionally, no buckets should ever be publicly read or write accessible.What should a DevOps engineer do to meet these requirements?Read More →

A company using AWS CodeCommit for source control wants to automate its continuous integration and continuous delivery pipeline on AWS in its development environment.The company has three requirements:1.There must be a legal and a security review of any code change to make sure sensitive information is not leaked through the source code.2.Every change must go through unit testing.3.Every change must go through a suite of functional testing to ensure functionality.In addition, the company has the following requirements for automation:1.Code changes should automatically trigger the CI/CD pipeline.2.Any failure in the pipeline should notify [email protected] must be an approval to stage the assets to Amazon S3 after tests have been performed.What should a DevOps Engineer do to meet all of these requirements while following Cl/CD best practices?Read More →

A company requires an RPO of 2 hours and an RTO of 10 minutes for its data and application at all times.An application uses a MySQL database and AmazonEC2 web servers.The development team needs a strategy for failover and disaster recovery.Which combination of deployment strategies will meet these requirements? (Choose two.)Read More →

An Amazon EC2 instance is running in a Virtual Private Cloud (VPC) and needs to download an object from a restricted Amazon S3 bucket.When the DevOps engineer tries to download, the object an AccessDenied error is received.What are the possible causes for this error? (Choose two.)Read More →