Where we can host WCF services?
Every WCF services must be hosted somewhere. There are three ways of hosting WCF services.
2. Self Hosting
3. WAS (Windows Activation Service)
For more details see http://msdn.microsoft.com/en-us/library/bb332338.aspx
What is address in WCF and how many types of transport schemas are there in WCF?
Address is a way of letting client know that where a service is located. In WCF, every service is associated with a unique address. This contains the location of the service and transport schemas.
WCF supports following transport schemas
IPC (Inter-Process Communication over named pipes)
The sample address for above transport schema may look like