Mastering Active Directory - Second Edition

Azure AD Connect deployment topology

Azure AD Connect uses two different topologies to support on-premises AD deployments. However, there are certain limitations and unsupported configurations that we need to consider, which are as follows:

• Single AD forest-single Azure AD: This is the most commonly used deployment topology. When a user has a single AD forest, it can be synced to one Azure AD Tenant. Even if it has multiple domains, it still can be used with one AD Tenant. The Azure AD Connect express setup only supports this topology. However, at any given time, only one Azure AD Connect server can sync data to the Azure AD Tenant. For HA, staging server support is available, which will be explained later in this section.
• Multiple AD forest-single ...