Where would you like your career to be in 5 years?

Your interviewer knows that this is your stepping stone to your dream job and that's ok. Since 5 years isn't too far away try not to make your goal seem too unrealistic. Stick to an answer that is in the same wheel house as the job you are interviewing for. Talking about a plan that is out in left field might make the interviewer wonder if you are going to put in your 2 weeks notice next week.