Question 1

You are working on a project that requires heavy machine learning model training and scoring. You have access to both the SAS server and the CAS server. Which server should you choose for optimal performance of these tasks?

Options :

A : Use the SAS server for model training and the CAS server for model scoring.

B : Use the CAS server for both model training and scoring to leverage its in-memory processing.

C : Use the SAS server for both model training and scoring to ensure model compatibility.

D : Use the SAS server for model training due to its extensive library of procedures and transfer the scored model to the CAS server for deployment.

Answer: B

Question 2

You are tasked with running a procedure to analyze a categorical variable 'BrandType' in your dataset, which contains over 100 unique brands. You're interested in performing a chi-square test to understand the association of 'BrandType' with another variable, 'PurchaseIntent'. However, given the high number of brands, you want to limit the chi-square test to only include the top 5 brands by frequency. What is the correct way to perform this in PROC FREQTAB?

Options :

A : PROC FREQTAB DATA=mydata; TABLES BrandType*PurchaseIntent / CHISQ LIMIT=5; RUN;

B : PROC FREQTAB DATA=mydata; TABLES BrandType*PurchaseIntent / CHISQ ORDER=FREQ (OUT[5]); RUN;

C : PROC FREQTAB DATA=mydata; TABLES BrandType*PurchaseIntent / CHISQ ORDER=FREQ COUNT=5; RUN;

D : PROC FREQTAB DATA=mydata; TABLES BrandType*PurchaseIntent / ORDER=FREQ TOPLEVEL=5 CHISQ; RUN;

Answer: D

Question 3

When analyzing the time between customer purchases, a data analyst needs to extract the month from a date variable 'purchase_date' in the SAS Viya environment. Which function can be appropriately used to extract the month component from the date?

Options :

A : `DATEPART()`

B : `MONTH()`

C : `DAY()`

D : `EXTRACT()`

Answer: B

Question 4

During a SAS Viya programming routine, a programmer attempts to load a dataset named 'customer_info' from a SAS data library named 'saslib' into the CAS environment. However, the programmer receives an error. What could be a possible reason for this if the LOAD CASDATA= statement used was: `load casdata=saslib.customer_info casout=caslib.customer_data;`

Options :

A : The 'saslib' library was not defined in the CAS server.

B : The target CAS library 'caslib' does not exist on the CAS server.

C : The dataset 'customer_info' does not exist in the 'saslib'.

D : All of the above reasons could cause an error.

Answer: D

Question 5

Given a dataset named 'orders' with variables 'orderId', 'customerId', and 'orderValue', you are tasked with writing a DATA Step to accumulate the total order value per customer. Which of the following codes will correctly produce a dataset with a total for each customer?

Options :

A : data customerTotals;set orders;by customerId;retain totalValue;if first.customerId then totalValue=0;totalValue + orderValue;if last.customerId then output;run;

B : data customerTotals;set orders;by customerId;totalValue + orderValue;if last.customerId then output;run;

C : data customerTotals;set orders;by customerId;retain totalValue 0;if first.customerId then call missing(totalValue);totalValue + orderValue;if last.customerId then output;run;

D : data customerTotals;set orders;retain totalValue 0;totalValue = totalValue + orderValue;output;run;

Answer: A

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