Question 1

A SAS Viya data analyst is tasked with selecting a random subset of data from a dataset called 'CustomerData', which contains over 1 million records. The requirement is to analyze a manageable subset without any bias. How should the analyst use the 'subSet=' parameter in a procedure to ensure a random selection?

Options :

A : PROC SURVEYSELECT DATA=CustomerData subSet=/METHOD=SRS SAMPRATE=0.01 OUT=SampleData;

B : PROC SURVEYSELECT DATA=CustomerData METHOD=SRS SAMPRATE=0.01 OUT=SampleData;

C : PROC SURVEYSELECT DATA=CustomerData subSet=(RANDOM 0.01) OUT=SampleData;

D : PROC SURVEYSELECT DATA=CustomerData / subSet=(RANDOM 0.01) OUT=SampleData;

Answer: B

Question 2

Which of the following is a true statement regarding variable scope in CASL?

Options :

A : Global variables declared outside of any function or action block are accessible only within the same script and cannot be accessed by other scripts or sessions.

B : CASL does not support local variables; all variables are global and can be accessed from any part of the program.

C : Variables in CASL are dynamically typed, and their scope is determined at runtime based on the execution context.

D : Local variables in CASL can be accessed and modified by any other blocks of code within the same action set.

Answer: A

Question 3

What is the correct way to use the CAS library to save the results of a procedure in SAS Viya?

Options :

A : Use a DATA step with the CASLIB statement to specify the target CAS library where the results should be saved.

B : Use the PROC COPY command with the TO= and FROM= options to move result tables to a specified CAS library.

C : Assign a libref to the desired CAS library and then specify that libref in the OUT= option of the procedure.

D : Result tables are automatically saved to the CAS library assigned to the user at login and no additional steps are required.

Answer: C

Question 4

A programmer wants to create a new variable that increments by 1 each time a new group, defined by the BY statement, is encountered in the dataset. Which SAS programming technique can achieve this?

Options :

A : Utilize the FIRST. variable that is automatically created when using a BY statement to increase a counter variable when FIRST.variable is true.

B : Use a RETAIN statement to carry the value of the counter variable from one group to the next, resetting it to 1 whenever the BY group changes.

C : Implement a WHERE statement to filter the dataset according to the BY group and then accumulate the counter for each group separately.

D : Apply the SUM statement with the BY variable to increment the counter without using FIRST. or RETAIN statements.

Answer: A

Question 5

When performing a data manipulation task using the simple action set in SAS Viya, you need to group the data by the 'region' variable and then calculate the total sales for each region. Which action should you use to accomplish this task within the simple action set?

Options :

A : simple.groupby

B : aggregation.groupby

C : simple.summary

D : simple.aggregate

Answer: D

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