LFC MLflow Model Registry 2

Question 1

Which MLflow API method is used to transition a registered model version to the 'Production' stage?

Accepted Answer

client.transition_model_version_stage()

Answer

The MlflowClient method `transition_model_version_stage()` is used to move a model version between stages like Staging, Production, or Archived.

Question 2

In Unity Catalog-backed MLflow, model names follow which naming convention?

Accepted Answer

catalog.schema.model_name

Answer

Unity Catalog uses a three-level namespace: catalog.schema.model_name, such as main.ml_models.my_classifier.

Question 3

What is the purpose of model aliases in the MLflow Model Registry?

Accepted Answer

To assign a mutable named reference to a specific model version

Answer

Aliases provide a mutable, human-readable pointer (e.g., 'champion') to a specific version, making it easy to update which version serves a role without changing calling code.

Question 4

Which function registers a model that was logged during an MLflow run?

Accepted Answer

mlflow.register_model()

Answer

`mlflow.register_model(model_uri, name)` takes the run artifact URI and registers it under a given name in the Model Registry.

Question 5

When loading a model from the registry using a Unity Catalog alias, which URI format is correct?

Accepted Answer

models:/catalog.schema.model@alias

Answer

The correct URI format uses `models:/` followed by the three-level name and `@alias`, e.g., `models:/main.ml.my_model@champion`.

(LFC) Lakehouse Fundamentals Certification Practice Test

(LFC) Lakehouse Fundamentals Certification Practice Test

LFC MLflow Model Registry 2