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SASInstitute A00-420 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Managing Data with CAS Enabled Procedures | 13% | - Loading, promoting, saving and dropping in-memory tables - Working with CAS libraries and sessions - CAS column data types and conversion |
| Analyze and Summarize Data with CAS Actions | 7% | - Generating visualizations and reports via ODS - Summary statistics and frequency tables |
| Prepare Data with CAS Actions | 22% | - Update, copy and alter in-memory tables - Data type conversion and missing value imputation - Using dataStep and fedSQL action sets |
| Explore and Validate Data with CAS Actions | 8% | - Identifying duplicates and invalid values - Inspecting table metadata and content |
| CAS Language Basics | 18% | - CASL syntax, variables, arrays and dictionaries - Using SOURCE blocks for code substitution - Capturing and processing CAS action results |
| CAS-Enabled Procedures and User Defined Formats | 8% | - User-defined formats in CAS - Procedures running on CAS vs Compute Server - Using PROC MEANS, SUMMARY, FREQTAB, MDSUMMARY |
| Programming in SAS Viya Concepts | 8% | - SAS Viya architecture: Compute Server vs CAS - Determining when to use CAS for tasks - Serial vs parallel and in-memory processing |
| Access Data with CAS Actions | 8% | - Loading, uploading and promoting tables - Managing caslibs and data sources |
| DATA Step and SQL Programming in CAS | 13% | - Converting PROC SQL to PROC FEDSQL - Updating DATA step for CAS compatibility - Execution location and threading rules |
SASInstitute SAS Viya Intermediate Programming Sample Questions:
Question #1
Which statement about CASL is true?
A. CASL is a replacement for the DATA Step.
B. CASL is a replacement for SQL.
C. CASL allows you to run any CAS action.
D. CASL is an open source language.
Question #2
Complete the following FedSQL code to convert the character variable markup to a numeric variable.
proc cas;
session mysess;
fedSql.execDirect /
query="create table casuser.cars_fedsql {options replace=true} as
select make, model, mpg_city, mpg_highway, <insert code segment here> as markup_N from casuser.cars"; run;
A. inputn(markup,'best12.')
B. put(markup,'best12.')
C. input(markup,'best12.')
D. cast(markup,'best12.')
Question #3
Which CAS action is used to calculate the sum, minimum, maximum, and mean for numeric variables in a CAS table?
A. cas.summarize
B. cas.describe
C. cas.aggregate
D. cas.statistics
Question #4
In PROC CASUTIL, what does the LOAD FILE= statement do?
A. It loads a file from a file location on the Compute Server to the CAS controller file system.
B. It loads files from a file path on the CAS server to a CAS table.
C. It loads the data from a CAS table to a file on the Compute Server.
D. It loads a file from a file path on the Compute Server to a CAS table.
Question #5
Which statement is used to apply a user-defined format within a PROC SQL query?
A. FORMAT SASDATE
B. GROUP BY
C. WHERE
D. FORMAT
Solutions:
| Question #1 Answer: C | Question #2 Answer: A | Question #3 Answer: A | Question #4 Answer: D | Question #5 Answer: D |


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