a2zinterviews

25.	What is Session Hijacking?
	If your application is not very secure, then it is possible to get the access of system after acquiring or generating the authentication information. Session hijacking refers to act of taking control of a user session after successfully obtaining or generating an authentication session ID. It involves an attacker using captured, brute forced or reverse engineered session IDs to get a control of a legitimate user's Web application session while that session is still in progress.
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26.	How do you delete a Cookie within a JSP?
	Cookie mycook = new Cookie ("name" , "value") ; response.addCookie (mycook) ; ; Cookie killmycook = new Cookie ("mycook" , "value") ; ; killmycook.setMaxAge(0) ; ; killmycook.setpath (" / ") ; ; killmycook.addCookie (killmycook) ;
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27.	What is the query used to display all table names in SQL Server (Query analyzer)?
	select * from information_schema.tables.
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28.	What is session migration?
	Session Migration is a mechanism of moving the session from one server to another in case of server failure. Session migration can be implemented by Persisting the session into database. Storing the session in memory on multiple servers.
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