Online Access Free 70-774 Exam Questions

Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You have a dataset that contains a column named Column1. Some of the values in Column1 are empty.
You need to replace the empty values by using probabilistic Principal Component Analysis (PCA). The solution must use a native module.
Which module should you use?

• A.Execute Python Script
• B.Edit Metadata
• C.Select Columns in Dataset
• D.Normalize Data
• E.Import Data
• F.Tune Model Hyperparameters
• G.Clean Missing Data

You need to create a training set for use with a linear regression model, and then to test the training set.
How should you create the training set? To answer, drag the appropriate modules to the correct locations. Each module may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.

Correct Answer:

Explanation

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 sections, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You are working on an Azure Machine Learning experiment.
You have the dataset configured as shown in the following table.

You need to ensure that you can compare the performance of the models and add annotations to the results.
Solution: You connect the Score Model modules from each trained model as inputs for the Evaluate Model module, and use the Execute R Script module.
Does this meet the goal?

• A.No
• B.Yes

You need to integrate code and formatted text into an Azure Machine Learning experiment that enables interactive execution.
What should you use?

• A.Azure Stream Analytics
• B.an Execute R Script module
• C.an Execute Python Script module
• D.a Jupyter notebook

You are analyzing taxi trips in New York City. You leverage the Azure Data Factory to create data pipelines and to orchestrate data movement.
You plan to develop a predictive model for 170 million rows (37 GB) of raw data in Apache Hive by using Microsoft R Server to identify which factors contribute to the passenger tipping behavior.
All of the platforms that are used for the analysis are the same. Each worker node has eight processor cores and 26 GB of memory.
Which type of Azure HDInsight cluster should you use to produce results as quickly as possible?

• A.Spark
• B.Interactive Hive
• C.HBase
• D.Hadoop