ADP Associate interview questions

I am fresher..I had called for the interview.. I had cleared the first round i.e written test.. Written test was of aptitude,reasoning and technical..all are multiple choice questions.. Later there was 2nd round Interview was tough.. They asked me on data structures... I was asked to leave for the day..

There were three rounds, personal and professional interview questions, after which i was told that they would get back to me ,i tried to follow up , as assured i expected them to give the feedback whether it was positive or negative, guess they get so busy assuming things about candidates, that they don't feel appropriate in their respective positions to keep the word at the hiring process itself.