H1B, H4 Visa

Before I add my experience, I would like to say thanks to immihelp and all those who posted their comments. I was interview in New Delhi on August 17th, 2012. Something strange happened. When I went to the counter, officer asked me only one question about my designation and then asked me to wait in the waiting area and told me that someone would call me back. I waited for 15-20 minutes. Noone called. then I asked helpdesk. they suggested me to go to one of the counters randomly. I explained the case to the officer. she started interviewing me. Lots of questions - 1. On which visa did I travel last time.
2. what does husband do and his visa status
3. what is the name of the company that he works with
4. what does my employer do
5. what is my role and responsibility
6. location of the employer
7. client's location
8. how is my performance monitored
9. how do i fill my timesheets
10. how many vendors are there between my employer and end client
11. what is the duration of the contract.
i was thinking that i will not get visa but the officer said that my visa has been approved. main thing is to prepare well for the interview and to answer truthfully to all the questions. hope that helps. Thanks.