Final answer:
A policy applied to a resource group affects all resources in that particular group. True.
Step-by-step explanation:
True. A policy applied to a resource group does indeed affect all resources in that particular group. In the context of computing and technology, a resource group is a logical grouping of resources, such as virtual machines or databases, within a cloud environment. Applying a policy to a resource group allows for centralized control and management of the resources within that group, ensuring that consistent policies and settings are enforced for all resources. This simplifies administration and helps maintain desired security and compliance standards.