Databricks Certified Machine Learning Professional — Question 79

A machine learning engineer has found drift in a production machine learning application. The engineer has determined that retraining and deploying a new model is necessary.

Which statement must be true prior to deploying the new model?

Answer options

• A. All of these statements must be true prior to deploying the new model
• B. The new model must perform better than the original model on a random subset of the available data
• C. The now model must perform better than the original model on all of the available data
• D. The new model must perform better than the original model on the most recently available data

Correct answer: D

Explanation

Prior to deploying the new model, it is crucial that it demonstrates improved performance compared to the original model on the most recently available data, as this reflects the current state of the environment. While the new model may also need to perform well on other subsets or all data, these are not mandatory conditions for deployment compared to the most recent data, which is directly relevant to current predictions.