If you have a Enterprise deployment with ArcGIS Server, Portal, Data Store(relational, tile cache), Enterprise Database, Image Server, File Server, etc. that are accessible via a webserver with Web Adapter for Portal. Is there a need for Web Adapter for Server? Is this intended more for multiple ArcGIS Server deployments?
Sorry, I am getting lost in how all of this gets integrated. Add in federating and my pea size brain implodes to nothingness. I have read through the many installation guides available but these seam to deal with the individual pieces and not the whole picture.