Request.UserAgent

we can identify the browser name using javascript

var brw = new navigator();
alert(brw.appname);
alert(brw.appversion);

Request.ServerVariables("http_user_agent")

Response.Write(Request.Browser.Type);

Use the Htmlencode method to encode input parameters when 
generating display.

Use the urlencode method to encode the url's  recieved as 
input parameters

Simple Object Access Protocol
It is preferred way to encode information such as data 
values before sending it to or from a webservice...

Simple Object Access Protocol (SOAP) is a protocol used for 
messaging and it is completely XML based. 
SOAP specifications are standardizes by W3C. 
SOAP provides a complete set of rules for the messages, 
also called SOAP envelopes, as well as rules for issues 
like data encoding, handling of messages, and binding of 
messages to other protocols,such as HTTP. A SOAP message is 
a simple XML document, which always contains a mandatory 
envelope and body element and can also contain a few 
optional elements such as header and fault element.
syntax of SOAP message: 
<?xml version="1.0"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2001/12/soap-envelope"
soap:encodingstyle="http://www.w3.org/2001/12/soap-
encoding">
<soap:Header>
...
...
</soap:Header>
<soap:Body>
...
<soap:fault>
...
</soap:fault>
</soap:Body>
</soap:Envelope>

data set is an in memory cache of data retrived from 
datasource.it is major component of Ado.net. data set is a 
collection of data tables.that you can relate to each other 
with data relations. data set can read and write in a XML 
schema.

Data minig some times called as data or knowledge discovery 
it is a process of analyzing data from different 
procepectives and summerizing into useful information.  
information that can be used to increase revenue, cuts 
costs, or both.

Respence.Buffer method can be used to specify the current 
output should be buffered or not. when the buffering is set 
true, the page will not send output to the client until the 
scripts on the page has been processing or flush method is 
call.

Response.flush method is used to send buffered output 
immediatly. when the response.buffer is set true.