Question 150
A Databricks engineer is correcting the following workflow: A deployed chatbot silently uses a different embedding model from the retrieval index built in development. Which change best addresses the documented requirement?
Explanation
Correct Answer
Correct. A deployable RAG application needs tracked model code, retriever config, embedding model, dependency versions, signature and example input. In the given situation — A deployed chatbot silently uses a different embedding model from the retrieval index built in development. — the targeted implement action is: Bundle compatible index/embedding identifiers and validate query-embedding compatibility at initialization. This directly meets the stated workflow constraint instead of addressing an adjacent capability.
Incorrect Answers
Not the strongest implement choice for this specific question. Register the MLflow model as a named Unity Catalog model version and grant only approved use/manage rights. This action primarily relates to Unity Catalog registered model version and privileges: MLflow-logged models can be registered in Unity Catalog, with governed names, permissions and traceable version lineage. However, the described case — A deployed chatbot silently uses a different embedding model from the retrieval index built in development. — is testing RAG production bundle metadata and dependencies. It does not directly establish the implement outcome or constraint that the question requires; it may still be useful in a different stage or incident.
Not the strongest implement choice for this specific question. Compare storage-optimized versus standard options, supported limits and actual query latency before selection. This action primarily relates to Standard versus storage-optimized Vector Search index: Index choice trades capacity, update speed, latency and storage economics; availability and feature support may vary by cloud/region. However, the described case — A deployed chatbot silently uses a different embedding model from the retrieval index built in development. — is testing RAG production bundle metadata and dependencies. It does not directly establish the implement outcome or constraint that the question requires; it may still be useful in a different stage or incident.
Not the strongest implement choice for this specific question. Query the relevant index with a compatible query embedding, select authorized matches and pass them to the prompt. This action primarily relates to Vector Search retrieval workflow and query integration: Semantic retrieval uses an embedding model to query a compatible index, returns ranked passages and metadata for grounded generation. However, the described case — A deployed chatbot silently uses a different embedding model from the retrieval index built in development. — is testing RAG production bundle metadata and dependencies. It does not directly establish the implement outcome or constraint that the question requires; it may still be useful in a different stage or incident.