Answer / payal

authentication is to verify that indentity has right to
access or not

mechanisums are
1.windows
for windows authentication we need iis because iis provid
windows authentication.
2.passport
in that authentication check using microsoft passport
service.
3.form
in that authentication is based on session cokkies.if that
is not available then page is redirected.

Answer / srujana

there are 3 types of authentication mechanisams in .net.
there are
1)forms authentication
2)windows authentication
3)passport authentication

Answer / shafi syed

I am regret to say that Suresh is wrong.

There are 3 types of authentications like:
1. Windows authenticaiton.
2. Form authentication.
3. Passport authentication.

and Iam agree with the Payal.

Answer / rino reji

http://msdn.microsoft.com/en-us/library/aa291347(v=vs.71).aspx
<system.web>
<!-- mode=[Windows|Forms|Passport|None] -->
<authentication mode="Windows" />
</system.web>

Answer / suresh

1.forms authentication
2.windows authentication
3.xml authentication

Answer / pandi

4) none

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