Resource groups are logical containers for hosting resources in Azure. A resource cannot exist without being contained in a resource group. A resource group is a management container that provides security boundary, policy, and locks assignments, reporting on cost, usage, and logs related to management-plane activities. A resource group is created within a region; however, resources contained in it can be in a different location and need not be in the same location as a resource group. Resource groups help with managing multiple resources as a group.