SharePoint can be deployed in different topologies:
- SharePoint Online
- Hybrid
- Azure/IaaS
- On-premises
The following image shows how responsibilities are split between Microsoft and the customer depending on the selected topology:
![](https://static.packt-cdn.com/products/9781788622073/graphics/assets/8f323dc8-0578-4be6-8eaf-7e9285d0d831.png)
SharePoint can be deployed in different topologies:
The following image shows how responsibilities are split between Microsoft and the customer depending on the selected topology:
SharePoint Online is a software as a service (SaaS) product that comes with your Office 365 tenant. The following image depicts a typical scenario in most organizations that uses SharePoint Online, with synchronized users to Azure AD and the source of the identity being the on-premises AD: