Description: A group resource in AWS CloudFormation is a component that is part of a broader set of resources that are managed together. These resources can include EC2 instances, RDS databases, and other AWS services that are grouped to facilitate their creation, update, and deletion. The main advantage of using group resources is the ability to define and manage infrastructure as code, allowing developers and system administrators to implement and maintain environments more efficiently and consistently. By grouping resources, dependencies can be established between them, ensuring they are created in the correct order and safely deleted. Additionally, group resources allow for template reuse, simplifying the management of complex configurations and reducing the risk of human error. In summary, group resources are fundamental for cloud service orchestration, providing a structured and automated way to handle cloud infrastructure.