WCF is an abbreviated form of Windows Communication Foundation. In general, it is widely used to create and generate the interoperable, scalable and distributed application. .NET 3.0 is a WCF applications framework which is used for the creation of service-oriented and aligned applications. With the help of this framework, users can send asynchronous data from one part to another.

Therefore, WCF applications can be used in a distributed system that can be run on multiple systems without any sort of compatibility barriers.

BY Best Interview Question ON 08 Sep 2019