before attending the interview, you must visit the website of particular company to know about their business and activities. Definitely, at the end of the interview, you will be stressed with the process. At that moment, better not ask questions. Do not ask questions about salary, pay, perks etc. That may give wrong impression. You must be aware of the fact on how much you are going to be paid for that position in that company. You can ask about follow up action whether u can call them to know the result of that interview. If they are going to hire u, generally, they will tell you immediately and issue appointment letter. 'We will inform you later' - if this is the reply, u can forget about the reply.
