Question 161

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You are analyzing a numerical dataset which contain missing values in several columns.
You must clean the missing values using an appropriate operation without affecting the dimensionality of the feature set.
You need to analyze a full dataset to include all values.
Solution: Use the last Observation Carried Forward (IOCF) method to impute the missing data points.
Does the solution meet the goal?
  • Question 162

    You are using Azure Machine Learning to train machine learning models. You need a compute target on which to remotely run the training script. You run the following Python code:

    Question 163

    You use the Azure Machine Learning SDK to run a training experiment that trains a classification model and calculates its accuracy metric.
    The model will be retrained each month as new data is available.
    You must register the model for use in a batch inference pipeline.
    You need to register the model and ensure that the models created by subsequent retraining experiments are registered only if their accuracy is higher than the currently registered model.
    What are two possible ways to achieve this goal? Each correct answer presents a complete solution.
    NOTE: Each correct selection is worth one point.
  • Question 164

    You need to define a process for penalty event detection.
    Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

    Question 165

    You need to set up the Permutation Feature Importance module according to the model training requirements.
    Which properties should you select? To answer, select the appropriate options in the answer area.
    NOTE: Each correct selection is worth one point.