DOP-C01

A company runs an application on one Amazon EC2 instance.Application metadata is stored in Amazon S3 and must be retrieved if the instance is restarted.The instance must restart or relaunch automatically if the instance becomes unresponsive.Which solution will meet these requirements?Read More →

A DevOps team manages an API running on-premises that serves as a backend for an Amazon API Gateway endpoint.Customers have been complaining about high response latencies, which the development team has verified using the API Gateway latency metrics in Amazon CloudWatch.To identify the cause, the team needs to collect relevant data without introducing additional latency.Which actions should be taken to accomplish this? (Choose two.)Read More →

A business has an application that consists of five independent AWS Lambda functions.The DevOps Engineer has built a CI/CD pipeline using AWS CodePipeline and AWS CodeBuild that builds, tests, packages, and deploys each Lambda function in sequence.The pipeline uses an Amazon CloudWatch Events rule to ensure the pipeline execution starts as quickly as possible after a change is made to the application source code.After working with the pipeline for a few months, the DevOps Engineer has noticed the pipeline takes too long to complete.What should the DevOps Engineer implement to BEST improve the speed of the pipeline?Read More →

A company is creating a software solution that executes a specific parallel-processing mechanism.The software can scale to tens of servers in some special scenarios.This solution uses a proprietary library that is license-based, requiring that each individual server have a single, dedicated license installed.The company has 200 licenses and is planning to run 200 server nodes concurrently at most.The company has requested the following features:✑ A mechanism to automate the use of the licenses at scale.✑ Creation of a dashboard to use in the future to verify which licenses are available at any moment.What is the MOST effective way to accomplish these requirements?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 →

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 →

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 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 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 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 →