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NEW QUESTION NO: 6
You have cloud and on-premises resources that include Microsoft SQL Server and a big data environment in Apache Hadoop.
You have 50 billion fact records.
You need to build time series models to execute forecasting reports on the fact records.
What should you use?
A. RxSpark on the Hadoop cluster
B. RxHadoopMR on the Hadoop cluster
C. RxLocalseq on the SQL Server database
D. RxLocalParallel on the SQL Server database
Answer: A
Explanation/Reference:
Explanation:

NEW QUESTION NO: 7
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. rxPredict
B. rxLogit
C. summary
D. rxLinMod
E. rxTweedie
F. stepAic
G. rxTransform
H. rxDataStep
Answer: A
Explanation/Reference:
Explanation:
References:https://docs.microsoft.com/en-us/machine-learning-server/r-reference/revoscaler/rxpredict

NEW QUESTION NO: 8
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 have a Microsoft SQL Server instance that has R Services (In-Database) installed.
You need to monitor the R jobs that are sent to SQL Server.
Solution: You create an events trace configuration file and place the file in the same directory as the BXLServer process.
Does this meet the goal?
A. Yes
B. No
Answer: B
Explanation/Reference:
Explanation:

NEW QUESTION NO: 9
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.
Select and Place:

Answer: 

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

NEW QUESTION NO: 10
You are running a parallel function that uses the following R code segment. (Line numbers are included for reference only.)
01 cp <- 0.01 xval <- 0 maxdepth <- 5
02
03 (form, data = "segmentationDataBig", maxDepth = maxdepth, cp = cp, xval = xval, blocksPerRead
250
You need to complete the R code. The solution must support chunking.
Which function should insert at line 02?
A. rxBTrees
B. rxExec
C. rxDForest
D. rxDTree
Answer: D
Explanation/Reference:
Explanation:

NEW QUESTION NO: 11
HOTSPOT
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Start of repeated scenario
You are developing a Microsoft R Open solution that will leverage the computing power of the database server for some of your datasets.
You are performing feature engineering and data preparation for the datasets.
The following is a sample of the dataset.

End of repeated scenario.
You need to sort the data from the dataset sample and to remove duplicates by using wkswork1.
Which R code segment should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Answer: 


NEW QUESTION NO: 12
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 calculate a measure of central tendency and variability for the variables in a dataset that is grouped by using another categorical variable.
What should you use?
A. the Describe package
B. the rxHistogram function
C. the rxSummary function
D. the rxQuantile function
E. the rxCube function
F. the summary function
G. the rxCrossTabs function
H. the ggplot2 package
Answer: C
Explanation/Reference:
Explanation:

NEW QUESTION NO: 13
You have a dataset.
You need to repeatedly split randomly the dataset so that 80 percent of the data is used as a training set and the remaining 20 percent is used as a test set.
Which method should you use?
A. threshold
B. binary classification
C. imputation
D. cross validation
E. pruning
Answer: D
Explanation/Reference:
Explanation:

NEW QUESTION NO: 14
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 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 dplyrXdf with the persist verb.
Does this meet the goal?
A. Yes
B. No
Answer: A
Explanation/Reference:
Explanation:
References: http://blog.revolutionanalytics.com/2016/12/dplyrxdf-090-now-available.html

NEW QUESTION NO: 15
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 have a Microsoft SQL Server instance that has R Services (In-Database) installed.
You need to monitor the R jobs that are sent to SQL Server.
Solution: You call a function from the RevoPemaR package.
Does this meet the goal?
A. Yes
B. No
Answer: B
Explanation/Reference:
Explanation:
References: https://docs.microsoft.com/en-us/machine-learning-server/r-reference/revopemar/pemar

NEW QUESTION NO: 16
HOTSPOT
Note: This question is part of a series of questions that use the same scenario. For your convenience, the scenario is repeated in each question. Each question presents a different goal and answer choices, but the text of the scenario is exactly the same in each question in this series.
Start of repeated scenario
You are developing a Microsoft R Open solution that will leverage the computing power of the database server for some of your datasets.
You are performing feature engineering and data preparation for the datasets.
The following is a sample of the dataset.

End of repeated scenario.
You plan to score some data to create data features to address empty rows.
You have the following R code.

You need to transform the data and overwrite the current dataset.
Which R code segment should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Answer: