What is Consolidation route and delivery routes? How to define Logon groups? And what is Logon load balancing? What is Transport domain and Domain controller?

consolidation route :

consolidation route is defined between the development sytem ( consolidated system ) and the quality system (integration system)

Delivery route :

Delivery route is the transport route that connects the integration system and the Delivery system ( Production system )

Defining Logon Groups :
we can do this though our GUI and allways make sure that saplogon.ini is backed up , that consists of all the logon data

Logon Load balancing :
It is used to identify the least loaded application server

Domain controller :

it is the central admin of the system

transport domain :

it is the place the transport layer and routes can be configured to access this transaction use stms