Your question is RAG System Design for Real Environments. 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).
Describe how you would design a RAG system end-to-end for real-world deployment, including data systems considerations.
Explain the architecture from source ingestion through retrieval, prompt construction, generation, and response delivery. Discuss storage, indexing, freshness, access control, evaluation, monitoring, cost, latency, and fallback behavior. State assumptions and identify which decisions depend on scale or workload characteristics.