Your question is Design Enterprise RAG at 100M Docs. 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 are designing an enterprise knowledge assistant that answers employee questions over a very large internal document corpus. The system needs to retrieve the right evidence, generate grounded answers, and handle frequent document updates across many sources.
Walk me through a reference architecture for enterprise RAG over 100M documents.