How will you encode URL strings?

HttpUtility.UrlEncode

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What is XSS?

Cross-site scripting .

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Where will you handle application level Exceptions?

In the application_error event in the global.asax.

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How will you lock configuration settings?

use the path attribute on the element to identify the Web application.

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What interface do you need to implement for your HttpHandler to support sessions?

It needs to implement IRequiresSessionState or IReadOnlySessionState in order to use session state.

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How will you find which control did the postback?

you can find the control which did postback using "__EVENTTARGET" with few exceptions.

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How will you impersonate the original caller?

<authentication mode="Windows" />
<identity impersonate="true" />

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