Cognizant Developer interview questions

I am a final year student at VIT University, Vellore. CTS came to our campus for recruitment this year and under a scheme called Topper Shopper it waived the written test for candidates having more than 75% in 10th, 12th and UG. The interview was cool, only asked questions related to my areas of interest I mentioned in my resume. It lasted for about 10 minutes. My advice for the interview is that answer confidently, because if you are a non-IT guy, in all probability the interviewer knows lesser about your subjects, than you do.