Question 1
During a controlled generative AI workflow test, engineers observe: A support knowledge search migrates from exact cosine comparisons to a highly constrained approximate nearest-neighbor index and repeatedly misses documents that are known matches. Which supported corrective action most directly addresses this problem?
Explanation
Correct Answer
The main issue is: Approximate vector indexes can trade candidate recall for lower retrieval latency, so fast queries alone cannot establish acceptable semantic search quality. The appropriate correction is: Tune index parameters and candidate retrieval depth using a labeled relevance benchmark with a documented recall and latency target. Verify success by checking: The test index retrieves the required known relevant articles within the stated recall tolerance and response-time budget.
Incorrect Answers
This action addresses rag retrieval leaks documents across customer tenants, whose causal condition is: Similarity rankings do not themselves authorize access, so cross-tenant filters must be applied in the trusted retrieval path before retrieved context reaches the model. The current scenario instead requires attention to: Approximate vector indexes can trade candidate recall for lower retrieval latency, so fast queries alone cannot establish acceptable semantic search quality.
This action addresses rag generated citations do not match retrieved passages, whose causal condition is: A model can produce plausible citation text without a reliable mapping to actual retrieved source identifiers, so generated reference claims require validation. In this question the necessary remedy is “Tune index parameters and candidate retrieval depth using a labeled relevance benchmark with a documented recall and latency target”, which this alternative does not provide.
This action addresses rag index stale after approved document revision, whose causal condition is: Refreshing a source document does not necessarily reprocess its chunks, embeddings or search index, so retrieved evidence may remain stale after an upstream update. The observed condition is a support knowledge search migrates from exact cosine comparisons to a highly constrained approximate nearest-neighbor index and repeatedly misses documents that are known matches; this mechanism addresses another problem.