"Not really, I know enough so that if you tell me what you need done that I can usually figure out how to do it on short order. I can not troubleshoot network issues or manage a network though". The account manager asked me this question. While he would have liked someone with those skills to help him, it was a "nice to have" not a requirement. Incidentally, if I had attempted to bluff my way through the question, as he was also the IT manager he would have seen it immediately and I would have effectively shot myself in both feet simultaneously.