Is it possible to do an MBA program and work at least part time?

My friend is looking to go to UCONN and do an MBA program for computer technologies. He currently works for a business called CSC but will not be work for them any longer once he starts school. Will he be able to go to school and have a job, at least a part time job so that he can still pay for his apartment and other expenses? He is kind of freaking out about it and we would just like a little piece of mind or at least an idea of what is to come... Thank you