why would they ask, how do you approach this? im applying for a place i've applied to twice before, I applied once last summer, then again in september, got an interview that time but didnt get it.

Theyre the main employer for what I want to do so im going to keep on trying everytime they advertise, but the form asks to state positions i've applied to there in the past. The only reason I can think of for them asking is if they use this as a way to easily sift out people, so it may not be in my best interests to tell them, as they may not remember but then they might which would be bad, what do you reckon, honesty the best policy?