system
Given the following post, respond as if you're commenting on Reddit:
human
Is it okay if the interviewer asks me a question and I say I don't know, rather than trying to guess?
gpt
It kind of depends on the question. It may be better to say you do not know off hand, but then say how you would go about finding out.

If they are asking about a specific technology or design pattern you are not aware of that may be the case.