This is getting into the nitty-gritty of the filling out the application, but I've been getting a lot of questions about this essay topic. You can find it in the transfer common app supplement.
2. Describe your activities during periods of time (other than summer vacations) when you were not enrolled in college.
Just so it's clear, this is a question for a student who has taken off time in between their years of school. It may be after high school or in the middle of college. Please don't interpret it to mean that you must take time off at some point during college. This question is more for our non-traditional student applicants. If it doesn't apply to you, meaning you've been in school consistently with the exception of summer vacations, simply type, "N/A" in the space. I hope that clears it up :)