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AI Engineering
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Retrieval-Augmented Generation
Advanced
In an enterprise RAG system, why must permission (ACL) filtering be applied at retrieval time rather than only instructing the LLM to 'not reveal unauthorized content'?
A
Because relying on the model to self-censor is unreliable and unauthorized text in context can still leak
B
Because the LLM cannot read metadata fields
C
Because retrieval is faster when permissions are ignored
D
Because embeddings cannot represent access levels
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