A Machine Learning Engineer is considering moving their functions and unit tests from notebooks into separate Python files (e.g., modules and test scripts) to take advantage of the numerous benefits of this approach like automated execution, code reusability, and version control. Which challenge should the engineer consider with this approach?

• A.This change would prevent the use of any non-Python environments like Scala.
• B.Separating code and tests often leads to decreased reliability and poor code quality.
• C.Managing a more complex project structure can be harder to maintain and navigate.
• D.It makes functions harder to import and reuse across different notebooks.

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Which of the following is an obstacle related to streaming machine learning applications?

• A.End-to-end fault tolerance
• B.Out-of-order data
• C.None of these
• D.All of these

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Why is Apache Spark useful for machine learning training?

• A.GPU rendering
• B.Distributed data processing
• C.Web serving
• D.Data visualization

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Feature drift occurs when there is a change in which element?

• A.The distribution of the predicted target given by the model
• B.The distribution of an input variable
• C.The distribution of a target variable
• D.The relationship between input variables and target variables

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What tool helps avoid feature mismatch between training and inference?

• A.MLflow Projects
• B.Feature Store
• C.Model Registry
• D.Spark SQL

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