Management groups allow you to build an Azure Subscription tree that can be used with several other Azure service, including Azure Policy and Azure Role Based Access Control.

A resource group in Azure is a container in which the metadata for a logical group of resources is stored. It provides a useful midway point between the subscription level and the resources themselves for administration and cost managemen.

A resource group in Azure is a container in which the metadata for a logical group of resources is stored. It provides a useful midway point between the subscription level and the resources themselves for administration and cost management.

Resource Group can be called as a container that holds related resources for an Azure solution. In Azure, you logically group related resources such as storage accounts, virtual networks, and virtual machines (VMs) to deploy, manage, and maintain them as a single entity.