SOA-C03-01

A CloudOps Engineer deployed an application using AWS CloudFormation. The application runs on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). A new version of the application must be deployed. The update must avoid DNS changes and support rollback. Which solution should the Administrator use to meet the deployment requirements for application update?. Modify the CloudFormation template to use an AutoScalingReplacingUpdate policy. Update the stack. Perform a second update with the new release. Create a new Amazon Machine Image (AMI) containing the updated code. Create a launch configuration with the AMI. Update the Auto Scaling group to use the new launch configuration. Configure the Auto Scaling group to use lifecycle hooks. Deploy new instances with the new application version. Complete the lifecycle hook action once healthy. Deploy a second CloudFormation stack. Wait for the application to be available. Cut over to the new Application Load Balancer.