Very good and easy on Java On python sometime in .net so can prepare accordingly If you're referring to an interview, it would be helpful to know more details. What kind of interview are you asking about? Job interview, research interview, or something else?

I applied in the capital one careers website.It took 2+ months for the interview process. Phone call with recruiter, online assessment, phone call with hiring manger and onsite interview. The recruiter is horrible. She did not even responded back after the onsite interview. It doesn't matter whether we are selected or not but it is courtesy to at least send an email to the candidate after the interview. I took one day off for their onsite interview and stayed there for 4 hours. After that haven't received any email or phone call from the recruiter about the feed back.Capital one is a big financial company, however they doesn't even have minimum courtesy. The recruiters should improve a lot by replying promptly and also they should give respect for the time we have spent for their power day(it is a big joke :-))