How do I respond when I don't know the answer? According to my experience, I have 10 years experience, I try to use my previous or feedback or knowledge and figure out the right answer. If I don't, then I'll ask also looking for experienced people who know the right answer. Don't try to do anything wrong. According to me, this is the right decision. If I don't know any answer, I need to figure out from other experienced people. Not to try by ourselves.