An application running on a set of Amazon EC2 instances in an Auto Scaling group requires a configuration file to operate. The instances are created and maintained with AWS CloudFormation. A DevOps engineer wants the instances to have the latest configuration file when launched and wants changes to the configuration file to be reflected on all the instances with a minimal delay when the CloudFormation template is updated. Company policy requires that application configuration files be maintained along with AWS infrastructure configuration files m source control.
Which solution will accomplish this?

1. A. In the CloudFormaiion template add an AWS Config rul
2. B. Place the configuration file content in the rule's InputParameters property and set the Scope property to the EC2 Auto Scaling grou
3. C. Add an AWS Systems Manager Resource Data Sync resource to the template to poll for updates to the configuration.
4. D. In the CloudFormation template add an EC2 launch template resourc
5. E. Place the configuration file content in the launch templat
6. F. Configure the cfn-mit script to run when the instance is launched and configure the cfn-hup script to poll for updates to the configuration.
7. G. In the CloudFormation template add an EC2 launch template resourc
8. H. Place the configuration file content in the launch templat
9. I. Add an AWS Systems Manager Resource Data Sync resource to the template to poll for updates to the configuration.
10. J. In the CloudFormation template add CloudFormation imt metadat
11. K. Place the configuration file content m the metadat
12. L. Configure the cfn-init script to run when the instance is launched and configure the cfn-hup script to poll for updates to the configuration.

Correct Answer: D
Use the AWS::CloudFormation::Init type to include metadata on an Amazon EC2 instance for the cfn-init helper script. If your template calls the cfn-init script, the script looks for resource metadata rooted in the AWS::CloudFormation::Init metadata key. Reference: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws- resource-init.html

A company runs an application on Amazon EC2 instances. The company uses a series of AWS CloudFormation stacks to define the application resources. A developer performs updates by building and testing the application on a laptop and then uploading the build output and CloudFormation stack templates to Amazon S3. The developer's peers review the changes before the developer performs the CloudFormation stack update and installs a new version of the application onto the EC2 instances.
The deployment process is prone to errors and is time-consuming when the developer updates each EC2 instance with the new application. The company wants to automate as much of the application deployment process as possible while retaining a final manual approval step before the modification of the application or resources.
The company already has moved the source code for the application and the CloudFormation templates to AWS CodeCommit. The company also has created an AWS CodeBuild project to build and test the application.
Which combination of steps will meet the company’s requirements? (Choose two.)

1. A. Create an application group and a deployment group in AWS CodeDeplo
2. B. Install the CodeDeploy agent on the EC2 instances.
3. C. Create an application revision and a deployment group in AWS CodeDeplo
4. D. Create an environment in CodeDeplo
5. E. Register the EC2 instances to the CodeDeploy environment.
6. F. Use AWS CodePipeline to invoke the CodeBuild job, run the CloudFormation update, and pause for a manual approval ste
7. G. After approval, start the AWS CodeDeploy deployment.
8. H. Use AWS CodePipeline to invoke the CodeBuild job, create CloudFormation change sets for each of the application stacks, and pause for a manual approval ste
9. I. After approval, run the CloudFormation change sets and start the AWS CodeDeploy deployment.
10. J. Use AWS CodePipeline to invoke the CodeBuild job, create CloudFormation change sets for each of the application stacks, and pause for a manual approval ste
11. K. After approval, start the AWS CodeDeploy deployment.

Correct Answer: AD
A- https://docs.aws.amazon.com/codedeploy/latest/userguide/codedeploy- agent.html D - This option correctly utilizes AWS CodePipeline to invoke the CodeBuild job and create CloudFormation change sets. It adds a manual approval step before executing the change sets and starting the AWS CodeDeploy deployment. This ensures that the deployment process is automated while retaining the final manual approval step.