Question : You have configured an Auto Scaling Group of EC2 instances fronted by an Application Load Balancer. The back-end database is a MySQL RDS database. Your dev team has created a new AMI which has been hardened to meet company security standards, and this AMI needs to be deployed on all EC2 instances in the organization. What step or steps do you need to take to deploy this AMI?
(a) Create a new launch configuration using this new AMI and then update your EC2 Auto Scaling Group with the new launch configuration.
(b) Replace the launch configuration by a launch template using the new AMI.
I think it’s b. AWS recommend to use launch templates instead of launch configurations