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SASInstitute A00-420 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| CAS Language Basics | 18% | - Capturing and processing CAS action results - CASL syntax, variables, arrays and dictionaries - Using SOURCE blocks for code substitution |
| DATA Step and SQL Programming in CAS | 13% | - Execution location and threading rules - Updating DATA step for CAS compatibility - Converting PROC SQL to PROC FEDSQL |
| Explore and Validate Data with CAS Actions | 8% | - Inspecting table metadata and content - Identifying duplicates and invalid values |
| Prepare Data with CAS Actions | 22% | - Update, copy and alter in-memory tables - Using dataStep and fedSQL action sets - Data type conversion and missing value imputation |
| CAS-Enabled Procedures and User Defined Formats | 8% | - User-defined formats in CAS - Using PROC MEANS, SUMMARY, FREQTAB, MDSUMMARY - Procedures running on CAS vs Compute Server |
| Analyze and Summarize Data with CAS Actions | 7% | - Generating visualizations and reports via ODS - Summary statistics and frequency tables |
| Managing Data with CAS Enabled Procedures | 13% | - Working with CAS libraries and sessions - CAS column data types and conversion - Loading, promoting, saving and dropping in-memory tables |
| Access Data with CAS Actions | 8% | - Loading, uploading and promoting tables - Managing caslibs and data sources |
| Programming in SAS Viya Concepts | 8% | - Determining when to use CAS for tasks - SAS Viya architecture: Compute Server vs CAS - Serial vs parallel and in-memory processing |
SASInstitute SAS Viya Intermediate Programming Sample Questions:
In SAS Viya, what is the purpose of the LIBNAME statement?
- A. To create a new library
- B. To assign a library reference
- C. To delete a library
- D. To import external data
Correct Answer: B 🗳️
You want to use the MEANS procedure to summarize data using the CAS server.
Which statement is true?
- A. All PROC MEANS statements are supported for CAS processing.
- B. You must specify a CAS engine libref with the input table name.
- C. Statistics that are supported by PROC MEANS are also supported on the CAS server.
- D. You must sort the data before using BY-group processing on the CAS server.
Correct Answer: B 🗳️
Which CAS action is used to calculate the sum, minimum, maximum, and mean for numeric variables in a CAS table?
- A. cas.statistics
- B. cas.describe
- C. cas.summarize
- D. cas.aggregate
Correct Answer: C 🗳️
Which CAS-enabled procedure is used to perform clustering analysis on CAS tables?
- A. CASCLUSTER
- B. CASKMEANS
- C. CASPROC
- D. CASSTAT
Correct Answer: A 🗳️
Which CASL statement correctly saves a SAS data set keeping only the empid and hrdate variables?
- A. table.save / caslib="hr", exportoptions={filetype="basesas"}, name="hiredate", table={caslib="casuser", name="emp", vars={"empid", "hrdate"}};
- B. table.save / caslib="hr", exportoptions={filetype="basesas"}, name="hiredate", table={caslib="casuser", name="emp", keep={{name="empid"}, {name="hrdate"}}};
- C. table.save / caslib="hr", exportoptions={filetype="sas7bdat"}, name="hiredate", table={caslib="casuser", name="emp", vars={{name="empid"}, {name="hrdate"}}};
- D. table.save / caslib="hr", exportoptions={filetype="sas7bdat"}, name="hiredate", table={caslib="casuser", name="emp", keep={"empid", "hrdate"}};
Correct Answer: A 🗳️
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