This kind of open question about any education or training you have completed invites you to make connections that can impress your interviewer. For instance, were there any aspects of your college course that could have a direct bearing on the job for which you are being interviewed? Do you feel that you learned more from one part of the course than another? Were there any extra-mural or external activities that you took part in that now have any relevance to this vacancy?
Many people forget to explain exactly where they went to college and precisely which course they took. Even if the employer already has this information on your CV or application form, he or she may not have it to hand, or even remember having seen it before. What sort of teaching methods were employed? Were there compulsory core modules or subjects and specialist options? How did you decide which to study?