Among others(?), Azure Active Directory allows to authorize access rights to secured resources through Azure role-based access control (Azure RBAC).
See also
The Azure Services
- Azure Active Directory Domain Services
- Azure Active Directory B2C
- Azure Directory External Identities
See also
get-azResourceProvider
There is a N:1 relationship between Azure subscription and Azure Active Directory: a subscription trusts one Azure AD to authenticate users, services and devices. (But one Azure AD might authenticate multiple subscriptions).
Resource Providers for Azure Active Directory include
- Microsoft.ADHybridHealthService
- Microsoft.Compute