DEEP EXPLANATION

Design a RAG pipeline for enterprise documents (EXPLAINED)

Company BasedRAGHard25 min read

Enterprise RAG interviews test system design at scale: ACL-aware retrieval, audit logging, and ingestion pipelines for millions of documents. This is a staff-level question appearing at Microsoft, Salesforce, and Fortune 500 AI teams. Walk through a complete architecture with security boundaries and operational concerns.

RAG · System Design

TL;DR — Quick Answer

Ingestion pipeline with OCR, ACL-aware chunking, vector store with namespace isolation, query-time permission filtering, and full audit trail.

The Interview Question

Design an end-to-end RAG system for 10M enterprise PDFs with access control and audit logging.

Deep Explanation

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3 more sections of deep explanation
Architecture diagram
Real-world examples
Common mistakes
Interviewer expectations
Follow-up questions

RAGEnterpriseSecurityMicrosoftSalesforce

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What is RAG? (SOLVED)

RAG has become the foundational architecture for production GenAI applications at companies like Notion, Duolingo, and Morgan Stanley. Interviewers expect you to explain the full retrieval pipeline — not just define the acronym. Follow along to master what RAG is, when to use it over fine-tuning, and how to articulate trade-offs that separate junior from senior candidates.

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