Online Access Free 70-773 Exam Questions

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.
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You use dplyrXdf, and you discover that after you exit the session, the output files that were created were deleted.
You need to prevent the files from being deleted.
Solution: You use rxSetComputeContext with the local parameter before performing operations that save results.
Does this meet the goal?

• A.No
• B.Yes

You have the following regression forest.

Which variable contributes the most to the dependent variable?

• A.stack.loss
• B.Air.Flow
• C.Acid.Conc
• D.Water.Temp

You are planning the compute contexts for your environment.
You need to execute rx-function calls in parallel.
What are three possible compute contexts that you can use to achieve this goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

• A.Spark
• B.local sequential
• C.local parallel
• D.Map Reduce
• E.SQL

DRAG DROP
You are using rxPredict for a logistic regression model.
You need to obtain prediction standard errors and confidence intervals.
Which R code segment should you use? To answer, drag the appropriate values to the correct targets. Each value 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:

References: https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-logistic-regression

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 need to generate a residual based on two columns. The solution must build a trend indicator.
Which function should you use?

• A.rxLinMod
• B.rxTransform
• C.rxPredict
• D.stepAic
• E.summary
• F.rxDataStep
• G.rxLogit
• H.rxTweedie