DevOps Engineer Professional (Page 32)

A media company has several thousand Amazon EC2 instances in an AWS account.The company is using Slack and a shared email inbox for team communications and important updates.A DevOps engineer needs to send all AWS-scheduled EC2 maintenance notifications to the Slack channel and the shared inbox.The solution must include the instances’ Name and Owner tags.Which solution will meet these requirements?Read More →

A company has deployed a new Amazon API Gateway API that retrieves the cost of items for the company’s online store.An AWS Lambda function supports the API and retrieves the data from an Amazon DynamoDB table.The API’s latency increases during times of peak usage each day.However, the latency of the DynamoDB table reads is constant throughout the day.A DevOps engineer configures DynamoDB Accelerator (DAX) for the DynamoDB table, and the API latency decreases throughout the day.The DevOps engineer then configures Lambda provisioned concurrency with a limit of two concurrent invocations.This change reduces the latency during normal usage.However, the company is still experiencing higher latency during times of peak usage than during times of normal usage.Which set of additional steps should the DevOps engineer take to produce the LARGEST decrease in API latency?Read More →

A company uses a series of individual Amazon CloudFormation templates to deploy its multi-Region applications.These templates must be deployed in a specific order.The company is making more changes to the templates than previously expected and wants to deploy new templates more efficiently.Additionally, the data engineering team must be notified of all changes to the templates.What should the company do to accomplish these goals?Read More →

A rapidly growing company wants to scale for Developer demand for AWS development environments.Development environments are created manually in theAWS Management Console.The Networking team uses AWS CloudFormation to manage the networking infrastructure, exporting stack output values for theAmazon VPC and all subnets.The development environments have common standards, such as Application Load Balancers, Amazon EC2 Auto Scaling groups, security groups, and Amazon DynamoDB tables.To keep up with the demand, the DevOps Engineer wants to automate the creation of development environments.Because the infrastructure required to support the application is expected to grow, there must be a way to easily update the deployed infrastructure.CloudFormation will be used to create a template for the development environments.Which approach will meet these requirements and quickly provide consistent AWS environments for Developers?Read More →

A company has a mission-critical application on AWS that uses automatic scaling.The company wants the deployment lifecycle to meet the following parameters:• The application must be deployed one instance at a time to ensure the remaining fleet continues to serve traffic.• The application is CPU intensive and must be closely monitored.• The deployment must automatically roll back if the CPU utilization of the deployment instance exceeds 85%.Which solution will meet these requirements?Read More →

A company must collect user consent to a privacy agreement.The company deploys an application in six AWS Regions: two Regions in North America, two Regions in Europe, and two Regions in Asia.The application has a user base of 20 million to 30 million users.The company needs to read and write data that is related to each user’s response.The company also must ensure that the responses are available in all six Regions.Which solution will meet these requirements with the LOWEST latency of reads and writes?Read More →

A company is testing a web application that runs on Amazon EC2 instances behind an Application Load Balancer.The instances run in an Auto Scaling group across multiple Availability Zones.The company uses a blue/green deployment process with immutable instances when deploying new software.During testing, users are being automatically logged out of the application at random times.Testers also report that, when a new version of the application is deployed, all users are logged out.The development team needs a solution to ensure users remain logged in across scaling events and application deployments.What is the MOST efficient way to ensure users remain logged in?Read More →

A company has a single-page application that was developed in Angular.A DevOps engineer needs to automate deployments of the application to a website that the company hosts on Amazon S3.The solution must provide version control of the source code and must give developers the ability to perform peer review.Which combination of steps will meet these requirements? (Choose three.)Read More →

A development team manually builds an artifact locally and then places it in an Amazon S3 bucket.The application has a local cache that must be cleared when a deployment occurs.The team executes a command to do this, downloads the artifact from Amazon S3, and unzips the artifact to complete the deployment.A DevOps team wants to migrate to a CI/CD process and build in checks to stop and roll back the deployment when a failure occurs.This requires the team to track the progression of the deployment.Which combination of actions will accomplish this? (Choose three.)Read More →

A company is implementing a well-architected design for its globally accessible API stack.The design needs to ensure both high reliability and fast response times for users located in North America and Europe.The API stack contains the following three tiers:• Amazon API Gateway• AWS Lambda• Amazon DynamoDBWhich solution will meet the requirements?Read More →