WCF Interview Questions Part_2

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4)      What are the main components of WCF?

Ans)

            The main components of WCF are

1. Service class
2. Hosting environment
3. End point

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5)      Can you explain how End points, Contract, Address and Bindings are done in WCF?

Ans)

All communication with a Windows Communication Foundation (WCF) service occurs through the endpoints of the service. Endpoints provide clients access to the functionality offered by a WCF service.

            Each endpoint consists of four properties:

ñ An address that indicates where the endpoint can be found.

ñ A binding that specifies how a client can communicate with the endpoint.

ñ A contract that identifies the operations available.

ñ A set of behaviors that specify local implementation details of the endpoint.

Example for Create EndPoints:

This example we explain with TCP Binding  binding type & class for this one is NetTcpBinding

string urlService=  “HostName”;

NetTcpBinding tcpBinding = new NetTcpBinding();

tcpBinding.TransactionFlow = false;

tcpBinding.Security.Transport.ProtectionLevel =                             System.Net.Security.ProtectionLevel.EncryptAndSign;

tcpBinding.Security.Transport.ClientCredentialType = TcpClientCredentialType.Windows;

tcpBinding.Security.Mode = SecurityMode.None; // <- Very crucial

                

 // Add a endpoint

syntax :: host.AddServiceEndpoint(contract,Binding,Address)

host.AddServiceEndpoint(typeof(Method or class for access your service), tcpBinding, urlService);

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6)What is a service class?

Ans) Service class means a .cs file, it contains the Servicecontract,DataContract & Operationcontract.

Service class is contains Endpoints.

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