Aws Academy Cloud Architecting [2606] - Module 4 Knowledge Check Already Passed

A system administrator must change the instance types of multiple running Amazon EC2 instances. The instances were launched with a mix of Amazon EBS-backed AMIs and instance store-backed AMIs. Which method is a valid way to change the instance type? A. Change the instance type of an Amazon EBS-backed instance without stopping it. B. Change the instance type of an instance store-backed instance without stopping it. C. Stop an Amazon EBS-backed instance, change its instance type, and start the instance. D. Stop an instance store-backed instance, change its instance type, and start the instance. {Ans: C}An application requires the MAC address of the host Amazon EC2 instance. The architecture uses an AWS Auto Scaling group to dynamically launch and terminate instances. Which way is best for the application to obtain the MAC address? A. Write the MAC address in the application configuration of each instance. B. Include the MAC address in the AMI that is used to launch all of the instances in the AWS Auto Scaling Group C. Include the MAC address in a custom AMI for each instance in the AWS Auto Scaling group. D. Use the user data of each instance to access the MAC address