Absolute Free DOP-C02 Exam Practice for Comprehensive Preparation 

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 operationally efficient way to ensure users remain logged in?

An insurance firm has recently undergone digital transformation and AWS cloud adoption. Its app development team has four environments, namely DEV, TEST, PRE-PROD, and PROD, for its flagship application that is configured with AWS CodePipeline. After several weeks, they noticed that there were several outages caused by misconfigured files or faulty code blocks that were deployed into the PROD environment. A DevOps Engineer has been assigned to add the required steps to identify issues in the application before it is released.

Which of the following is the MOST appropriate combination of steps that the Engineer should implement to identify functional issues during the deployment process? (Select TWO.)

A company has an application that runs on a fleet of Amazon EC2 instances. The application requires frequent restarts. The application logs contain error messages when a restart is required. The application logs are published to a log group in Amazon CloudWatch Logs.

An Amazon CloudWatch alarm notifies an application engineer through an Amazon Simple Notification Service (Amazon SNS) topic when the logs contain a large number of restart-related error messages. The application engineer manually restarts the application on the instances after the application engineer receives a notification from the SNS topic.

A DevOps engineer needs to implement a solution to automate the application restart on the instances without restarting the instances.

Which solution will meet these requirements in the MOST operationally efficient manner?

A company has chosen AWS to host a new application. The company needs to implement a multi-account strategy. A DevOps engineer creates a new AWS account and an organization in AWS Organizations. The DevOps engineer also creates the OU structure for the organization and sets up a landing zone by using AWS Control Tower.

The DevOps engineer must implement a solution that automatically deploys resources for new accounts that users create through AWS Control Tower Account Factory. When a user creates a new account, the solution must apply AWS CloudFormation templates and SCPs that are customized for the OU or the account to automatically deploy all the resources that are attached to the account. All the OUs are enrolled in AWS Control Tower.

Which solution will meet these requirements in the MOST automated way?

A leading telecommunications company is using CloudFormation templates to deploy enterprise applications to their production, staging, and development environments in AWS. Their current process involves manual changes to their CloudFormation templates in order to specify the configuration variables and static attributes for each environment. The DevOps Engineer was tasked to set up automated deployments using AWS CodePipeline and ensure that the CloudFormation template is reusable across multiple pipelines.

How should the DevOps Engineer satisfy this requirement?