Microsoft 70-773 Exam Practice Questions (P. 3)
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Question #11
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 estimate a model where the outcome variable is continuous, is in the range of [0, inf], and has a substantial mass at an exact value of 0.
Which function should you use?
You need to estimate a model where the outcome variable is continuous, is in the range of [0, inf], and has a substantial mass at an exact value of 0.
Which function should you use?
- ArxPredict
- BrxLogit
- Csummary
- DrxLinMod
- ErxTweedie
- FstepAic
- GrxTransform
- HrxDataStep
Correct Answer:
F
F
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Question #12
You have a Microsoft SQL Server instance that has R Services (In-Database) installed. The server has a comma-separated values (CSV) file stored in the local file system.
For analytic purposes, you need to read the CSV file into a database table in the SQL Server instance.
You connect to the SQL Server instance by using SQL Server Management Studio.
What should you use from sp_execute_external_script?
For analytic purposes, you need to read the CSV file into a database table in the SQL Server instance.
You connect to the SQL Server instance by using SQL Server Management Studio.
What should you use from sp_execute_external_script?
- ARxSqlServerData and specify the CSV file path in the connection string
- BrxDataStep and specify the CSV file path as the inFile argument
- CrxImportToXdf and specify specify the CSV file as the input
- Dread.csv and specify the CSV file path as the parameter
Correct Answer:
D
D
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Question #13
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?
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?
- ADefine a data source to the Oracle database server by using RxOdbcData. Use rxImport to save the data to a comma-separated values(CSV) file.
- BUse 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.
- CDefine a data source to the Oracle database server by using RxOdbcData,and then use rxImport to save the data to an XDF file.
- DUse the RODBC library, connect to the Oracle database server by using odbcConnect, and then use rxSplit to save the data to multiple comma-separated
Correct Answer:
C
C
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Question #14
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
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?
01 cp <- 0.01 xval <- 0 maxdepth <- 5
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?
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Question #15
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:
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:
Correct Answer:
References: https://docs.microsoft.com/en-us/machine-learning-server/r/how-to-revoscaler-logistic-regression

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