If you are applying for a job in investment banking, the interview process plays a huge part in decision whether you will be hired or not. Before going into one, it is best to be prepared. Not only that you need to know your financial banana, but the truth is that every company is different from each other so it is difficult to make generalizations on what to expect in the interview. However it is best to be ready for it to become easier for you. The number of people who will interview you varies by bank. It could be the manager, associate or even the VP. Don’t plan anything for the day because it could last for hours.