Real SASInstitute A00-420 practice exam questions for easy pass!
Last Updated: Sep 09, 2026
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| 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 |
| Explore and Validate Data with CAS Actions | 8% | - Inspecting table metadata and content - Identifying duplicates and invalid values |
| Analyze and Summarize Data with CAS Actions | 7% | - Summary statistics and frequency tables - Generating visualizations and reports via ODS |
| 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 |
| CAS-Enabled Procedures and User Defined Formats | 8% | - Using PROC MEANS, SUMMARY, FREQTAB, MDSUMMARY - Procedures running on CAS vs Compute Server - User-defined formats in CAS |
| Programming in SAS Viya Concepts | 8% | - SAS Viya architecture: Compute Server vs CAS - Serial vs parallel and in-memory processing - Determining when to use CAS for tasks |
| DATA Step and SQL Programming in CAS | 13% | - Updating DATA step for CAS compatibility - Converting PROC SQL to PROC FEDSQL - Execution location and threading rules |
| Managing Data with CAS Enabled Procedures | 13% | - CAS column data types and conversion - Working with CAS libraries and sessions - Loading, promoting, saving and dropping in-memory tables |
| Access Data with CAS Actions | 8% | - Loading, uploading and promoting tables - Managing caslibs and data sources |
Question 1
Which CAS-enabled procedure is used to combine multiple CAS tables based on a common key variable?
A. CASTABLE
B. CASCOMBINE
C. CASMERGE
D. CASEJOIN
Question 2
Which PROC CAS step will transpose the CLASS table so that the values of the NAME column are used to create the column names in the output table?
A. proc cas;
transpose.transpose /
table={caslib="casuser", name="class", groupby={name="name"}},
casout={caslib="casuser", name="outclass", replace=true};
quit;
B. proc cas;
transpose.transpose /
table={caslib="casuser",name="class"},
transpose={"name"},
casout={caslib="casuser", name="outclass", replace=true};
quit;
C. proc cas;
transpose.transpose /
table={caslib="casuser", name="class", orderby={name="name"}},
id={"age"},
casout={caslib="casuser", name="outclass", replace=true};
quit;
D. proc cas;
transpose.transpose /
table={caslib="casuser", name="class"} ,
id={"name"},
casout={caslib="casuser", name="outclass", replace=true};
quit;
Question 3
What is a user-defined format in SAS?
A. A format that is specific to CAS-enabled procedures
B. A format that is predefined by SAS
C. A format that is created and stored by the user
D. A format that is used for data visualization
Question 4
Which CASL program correctly adds the Sales caslib to access data in the /data/sales folder?
A. proc cas;
table.addCaslib /
name="/data/sales",
dataSource={srctype="path"};
run;
B. proc cas;
table.addCaslib /
name="sales",
path="/data/sales";
run;
C. proc cas;
table.addCaslib /
name="sales",
dataSource={srctype="path"},
path="sales";
run;
D. proc cas;
table.addCaslib,
name="/data/sales",
path="/data/sales";
run;
Question 5
Given the following SAS program:
data casuser.national;
set casuser.baseball(where=(league='National'));
r=ranuni(625);
drop league;
run;
Why is the above program processed by the Compute Server rather than the CAS server?
A. The WHERE option is not supported in the SET statement.
B. The SESSREF= option is not specified in the DATA statement.
C. The DROP statement is not supported.
D. The RANUNI function is not supported.
Solutions:
| Question 1 Answer: C | Question 2 Answer: D | Question 3 Answer: C | Question 4 Answer: B | Question 5 Answer: D |
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