28 05 2018
[May-2018-New]Full Version 70-773 Exam Dumps PDF and VCE 40Q for Free Download[1-11]
2018 May New Microsoft 70-773 Real Exam Dumps with PDF and VCE Free Updated Today! Following are some new 70-773 Real Exam Questions:
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QUESTION 1
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
QUESTION 2
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
QUESTION 3
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 register an Extended Events package.
Does this meet the goal?
A. Yes
B. No
Answer: A
Explanation:
https://docs.microsoft.com/en-us/sql/advanced-analytics/r/extended-events-for-sql-server-r-services
QUESTION 4
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
QUESTION 5
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 analyze the dataset without the missing values. The solution must not remove the missing values from the dataset.
Which R code segment should you use?
A. rxDataStep(varsToDrop = NULL)
B. rxDataStep(transforms = `removeMissing’)
C. rxDataStep(transformFunc = `removeMissing’)
D. rxDataStep(removeMissingsOnRead = FALSE, removeMissing = TRUE)
Answer: D
QUESTION 6
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 have the following R code.
Which function determines the variable?
A. transformVars
B. rxXdfDataFrame
C. createRandomSample
D. transformFunc
Answer: A
QUESTION 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 evaluate the significance of coefficients that are produced by using a model that was estimated already.
Which function should you use?
A. rxPredict
B. rxLogit
C. summary
D. rxLinMod
E. rxTweedie
F. stepAic
G. rxTransform
H. rxDataStep
Answer: D
Explanation:
https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-linear-model
QUESTION 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 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. Yes
B. No
Answer: B
QUESTION 9
You need to use the ScaleR distributed processing in an Apache Hadoop environment.
Which data source should you use?
A. Microsoft SQL Server database
B. XDF data files
C. ODBC data
D. Teradata database
Answer: B
Explanation:
https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-hadoop
QUESTION 10
You perform an analysis that produces the decision tree shown in the exhibit. (Click the Exhibit button.)
How many leaf nodes are there on the tree?
A. 2
B. 3
C. 5
D. 7
Answer: C
Section: (none)
Explanation/Reference:
Explanation:
https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-decision-tree
QUESTION 11
You plan to read data from an Oracle database table and to store the data in the file system for later processing by dplyrXdf. The size of the data is larger than the memory on the server to be used for modelling.
You need to ensure that the data can be processed by dplyrXdf in the least amount of time possible.
How should you transfer the data from the Oracle database?
A. Define a data source to the Oracle database server by using RxOdbcData. Use rxImport to save the data to a comma-separated values (CSV) file.
B. Use the RODBC library, connect to the Oracle database server by using odbcConnect, and then use rxDataStep to export the data to a comma-separated values (CSV) file.
C. Define a data source to the Oracle database server by using RxOdbcData, and then use rxImport to save the data to an XDF file.
D. Use the RODBC library, connect to the Oracle database server by using odbcConnect, and then use rxSplit to save the data to multiple comma-separated values (CSV) file.
Answer: C
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