Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam 2025 – Your All-in-One Guide to Exam Success!

A resource group serves as a logical container in Azure that holds related resources for a particular solution. It allows users to manage and organize their resources effectively, enabling better scalability and governance. By grouping resources, users can deploy, update, and delete them collectively as needed. This functionality is particularly beneficial in managing billing, role-based access control, and other operations at a project or application level.

Resource groups play a crucial role in Azure's resource management model, providing a way to maintain resources that share the same lifecycle. Furthermore, they facilitate easier management tasks, such as deploying resources in resource groups using templates and tracking costs or resource usage.

The other options do not fulfill this definition of a container for related resources in Azure. A resource set and resource pool do not exist as formal Azure concepts, while a paired datacenter generally refers to a physical infrastructure aspect in Azure and not as a logical grouping of resources.