Interview Questions → .NET WEB SERVICE → .Net WebService Questionnaire I

.Net WebService Questionnaire I

Overloading web service methods?

[WebService(Namespace = "http://tempuri.org/")]

[WebServiceBinding(ConformsTo = WsiProfiles.None)]

[ToolboxItem(false)]

public class Service1 : System.Web.Services.WebService
{ 
    [WebMethod]
    public string HelloWorld()
    {
        return "Hello World";
    }
    [WebMethod(MessageName = "Another Method with HelloWorld()")]
    public string HelloWorld(string str)
    {
        return "this is " + str;
    }
}

In this example I have defined 2 methods with same name but different signatures i.e.HelloWorld()

To differentiate the methods add MessageName property in the WebMethod attribute

Change the ConformsTo attribute to WsiProfiles.None

What is WSDL?

Web Service Description Language is a XML document which describes the webservice. It specifies the location of the service and the methods the service exposes.

Which protocol is used to call a web service?

HTTP protocol

What is the file extension of web service?

.asmx

What is the difference between REST and SOAP?

      1. SOAP only supports XML whereas REST supports text, JSON and XML.

      2. SOAP stands for Simple Object Access Protocol whereas REST stands for Representational State Transfer.

      3. SOAP requires more bandwidth than REST.

      4. REST is the stateless protocol.

Posted By -

Karan Gupta

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