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Guide for Databricks-Databricks-Machine-Learning-Professional

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Quiz

1/10
Which of the following describes concept drift?
Select the answer
1 correct answer
A.
Concept drift is when there is a change in the distribution of an input variable
B.
Concept drift is when there is a change in the distribution of a target variable
C.
Concept drift is when there is a change in the relationship between input variables and target variables
D.
Concept drift is when there is a change in the distribution of the predicted target given by the model
E.
None of these describe Concept drift

Quiz

2/10
A machine learning engineer is monitoring categorical input variables for a production machine learning application. The engineer believes that missing values are becoming more prevalent in more recent data for a particular value in one of the categorical input variables. Which of the following tools can the machine learning engineer use to assess their theory?
Select the answer
1 correct answer
A.
Kolmogorov-Smirnov (KS) test
B.
One-way Chi-squared Test
C.
Two-way Chi-squared Test
D.
Jenson-Shannon distance
E.
None of these

Quiz

3/10
A data scientist is using MLflow to track their machine learning experiment. As a part of each MLflow run, they are performing hyperparameter tuning. The data scientist would like to have one parent run for the tuning process with a child run for each unique combination of hyperparameter values. They are using the following code block: Certification Exam Databricks-Databricks-Machine-Learning-Professional Databricks Databricks-Databricks-Machine-Learning-Professional 2-4204516569 The code block is not nesting the runs in MLflow as they expected. Which of the following changes does the data scientist need to make to the above code block so that it successfully nests the child runs under the parent run in MLflow?
Select the answer
1 correct answer
A.
Indent the child run blocks within the parent run block
B.
Add the nested=True argument to the parent run
C.
Remove the nested=True argument from the child runs
D.
Provide the same name to the run name parameter for all three run blocks
E.
Add the nested=True argument to the parent run and remove the nested=True arguments from the child runs

Quiz

4/10
A machine learning engineer wants to log feature importance data from a CSV file at path importance_path with an MLflow run for model model. Which of the following code blocks will accomplish this task inside of an existing MLflow run block?
Select the answer
1 correct answer
A.
Certification Exam Databricks-Databricks-Machine-Learning-Professional Databricks Databricks-Databricks-Machine-Learning-Professional 3-28521445
B.
Certification Exam Databricks-Databricks-Machine-Learning-Professional Databricks Databricks-Databricks-Machine-Learning-Professional 4-1088280303
C.
mlflow.log_data(importance_path, "feature-importance.csv")
D.
mlflow.log_artifact(importance_path, "feature-importance.csv")
E.
None of these code blocks tan accomplish the task.

Quiz

5/10
Which of the following is a simple, low-cost method of monitoring numeric feature drift?
Select the answer
1 correct answer
A.
Jensen-Shannon test
B.
Summary statistics trends
C.
Chi-squared test
D.
None of these can be used to monitor feature drift
E.
Kolmogorov-Smirnov (KS) test

Quiz

6/10
A data scientist has developed a model to predict ice cream sales using the expected temperature and expected number of hours of sun in the day. However, the expected temperature is dropping beneath the range of the input variable on which the model was trained. Which of the following types of drift is present in the above scenario?
Select the answer
1 correct answer
A.
Label drift
B.
None of these
C.
Concept drift
D.
Prediction drift
E.
Feature drift

Quiz

7/10
A data scientist wants to remove the star_rating column from the Delta table at the location path. To do this, they need to load in data and drop the star_rating column. Which of the following code blocks accomplishes this task?
Select the answer
1 correct answer
A.
spark.read.format(“delta”).load(path).drop(“star_rating”)
B.
spark.read.format(“delta”).table(path).drop(“star_rating”)
C.
Delta tables cannot be modified
D.
spark.read.table(path).drop(“star_rating”)
E.
spark.sql(“SELECT * EXCEPT star_rating FROM path”)

Quiz

8/10
Which of the following operations in Feature Store Client fs can be used to return a Spark DataFrame of a data set associated with a Feature Store table?
Select the answer
1 correct answer
A.
fs.create_table
B.
fs.write_table
C.
fs.get_table
D.
There is no way to accomplish this task with fs
E.
fs.read_table

Quiz

9/10
A machine learning engineer is in the process of implementing a concept drift monitoring solution. They are planning to use the following steps: 1. Deploy a model to production and compute predicted values 2. Obtain the observed (actual) label values 3. 4. Run a statistical test to determine if there are changes over time Which of the following should be completed as Step #3?
Select the answer
1 correct answer
A.
Obtain the observed values (actual) feature values
B.
Measure the latency of the prediction time
C.
Retrain the model
D.
None of these should be completed as Step #3
E.
Compute the evaluation metric using the observed and predicted values

Quiz

10/10
Which of the following is a reason for using Jensen-Shannon (JS) distance over a Kolmogorov- Smirnov (KS) test for numeric feature drift detection?
Select the answer
1 correct answer
A.
All of these reasons
B.
JS is not normalized or smoothed
C.
None of these reasons
D.
JS is more robust when working with large datasets
E.
JS does not require any manual threshold or cutoff determinations
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