Web Services

What is .Net Web Service?

Web service is the way to publish application's function on web that can be accessible to the rest of the world. Web services are the components that can be used by other applications..............
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Define SOAP, WSDL, and UDDI. 

SOAP, Simple Object Access Protocol is a communication protocol, a way to structure data before transmitting it, is based on XML standard. It is developed to allow communication between applications of different platforms and programming languages via internet..................
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Explain the protocols a .Net Web Service uses.

In .Net, a web service is bind with three different protocols such as HTTP/POST, HTTP/GET, and SOAP. This allows client with three options to choose for communication..............
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Global asax File

The Global.asax file is an optional file and can be stored
in root directory. This File is in accesible for web-sites.
This Global.asax file contained in HttpApplicationClass.
In Global.asax file we can declare global variables like for
example the variables used in master pages because same
variables can be used for different pages right.It provides
more security than others.
The Global.asax file is used to handle application-level
and session-level events.
we donot worry about configuring Global.asax because it is
itself configured. Accessing the Global.asax file can not be possible.
while one request is in processing it is impossible to
send another request, we can not get response for other
request and even we can not start a new session.
while adding this Global.asax file to our application bydefault it contains five methods,
Those methods are:
1.Application_Start.
2.Application_End.
3.Session_Start.
4.Session_End.
5.Application_Error.