The surest way to communicate to me that you know nothing is to mention the “[Brand X] Technology” included in the product in question, where “Brand X” is clearly a meaningless, made-up term, and then be unable to describe to me what that means, and then insist that “no, it’s not a made up term.”

You may also opt to compound your error by offering to show me Gartner “magic quadrant” graphs favorable to the product in question.

You may complete the trifecta by getting huffy when I poke you about the fundamental fecklessness of both points.