Your question is System Design: RAG in Practice. 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).
What is RAG and how did you use it in your project?
Asked in the Technical Round stage. LLM/RAG discussion. Explain the concept, then describe an end-to-end implementation from document ingestion through retrieval, ranking, prompt assembly, generation, and evaluation. Clarify the project context, scale, latency target, data sources, model choices, and how you addressed hallucinations, stale knowledge, access control, monitoring, and training-serving consistency. Discuss both offline validation and online production feedback. Be explicit about which components were batch processed and which ran online.