An organization must publish hosted feature layers and hosted scene layers to its ArcGIS Enterprise portal. The GIS administrator takes the following steps to enable this functionality:
Federates a GIS Server with the portal
Registers an ArcGIS Data Store relational data store with the GIS Server
Which action should the administrator perform next?
After federating a GIS Server with the portal and registering a relational data store, the next step is to designate the GIS Server as the hosting server in the ArcGIS Enterprise portal. This configuration enables the portal to support the publishing of hosted feature layers and hosted scene layers. The hosting server must have both a relational data store and a tile cache data store configured to support these functionalities.
Reference Source: ArcGIS Enterprise documentation on configuring a hosting server