WCF

WCF stands for Windows communication Foundation. WCF is a set of technologies for building distributed systems in which components communicate with one another over networks.
WCF webservice is a class that allows its methods to be called by methods on other machines via common data formats and protocols such as XML, JSON and HTTP. In dotnet over-the- network method calls are commonly implemented through Simple Object Accesss Protocol (SOAP) are the Representational State Transfer(REST) architecture.

WCF services basics:

Each WCF service can have one or more end points. An end point is th epath through which a wcf client connects to a wcf service.
Every end point has three key components- Address/Binding/Contracts.

WCF Service:

A WCF Service is composed of three parts — a Service class that implements the service to be provided, a host environment to host the service, and one or more endpoints to which clients will connect.

Insert data using WCF & Linq