Your question is Learn a New Technical Domain Fast. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You’ve been asked to lead a product effort in a technical area you have not worked in before. You need to get effective quickly enough to make decisions, earn credibility with engineering and operations, and keep the project moving without pretending to know more than you do.
Tell me about a time you had to learn a new technical domain quickly.