A is incorrect: Azure Machine Learning offers five built-in monitoring signals by default, not just two. Prediction drift, feature attribution drift, and model performance are all available as native signals without requiring custom implementation.
B is incorrect: These metrics are captured during model development and training, not as production monitoring signals. Azure Machine Learning's model monitoring specifically tracks characteristics of production inference data and model behavior post-deployment.
C is incorrect: These represent infrastructure-level operational metrics accessible through Azure Monitor for online endpoints, rather than model monitoring signals. Model monitoring focuses on data and model quality aspects like drift detection and performance degradation.
D is correct: Azure Machine Learning model monitoring provides these five integrated signals for tabular data. Collectively, they cover changes in input distribution, shifts in output distribution, data integrity issues, alterations in feature importance, and degradation of objective model quality.