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RAG Pipeline for Enterprise

HardSystem Design00:00
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Your question is RAG Pipeline for Enterprise. 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).

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Problem

Explain how you would design a RAG-based pipeline for an enterprise customer with 500ms latency requirements.

Assume the system must serve employees across chat and search surfaces, with mixed document types and frequent updates. Focus on how you would meet the latency target while keeping answers grounded, fresh, and auditable. Be explicit about retrieval, ranking, re-ranking, caching, and fallback behavior.