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100+ Free SAS Base Programming Practice Questions

Pass your SAS Certified Specialist: Base Programming Using SAS 9.4 exam on the first try — instant access, no signup required.

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How do you sort observations in a SAS dataset?

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ArticleSAS Certified Specialist Base Programming Exam Guide 2026: A00-231 Study Plan13 min read
2026 Statistics

Key Facts: SAS Base Programming Exam

40-45

Exam Questions

SAS official credential page

135 min

Exam Duration

SAS official credential page

725

Passing Score (out of 1000)

SAS official credential page

$180

Exam Fee

SAS global exam pricing

A00-231

Exam Code

SAS certification registry

The A00-231 exam has 40-45 performance-based questions in 135 minutes at $180 USD. Passing requires a scaled score of 725 on a 200-1000 scale. Four domains: Access/Create Data (20-25%), Manage Data (35-40%), Error Handling (15-20%), Reports/Output (15-20%). Based on SAS 9.4 M5.

Sample SAS Base Programming Practice Questions

Try these sample questions to test your SAS Base Programming exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What SAS statement assigns a library reference name to a physical location on disk?
A.DATA
B.LIBNAME
C.FILENAME
D.PROC
Explanation: The LIBNAME statement associates a logical name (libref) with a physical location. For example, LIBNAME mylib "/path/to/data"; allows referencing datasets as mylib.dataset_name.
2Which PROC is used to examine the contents and structure of a SAS data set?
A.PROC PRINT
B.PROC CONTENTS
C.PROC MEANS
D.PROC FREQ
Explanation: PROC CONTENTS displays metadata about a SAS dataset including variable names, types, lengths, formats, labels, number of observations, and creation date. It is essential for understanding dataset structure.
3In a SAS DATA step, what does the SET statement do?
A.Creates a new empty dataset
B.Reads observations from an existing SAS dataset into the Program Data Vector (PDV)
C.Sets variable values to missing
D.Configures system options
Explanation: The SET statement reads observations one at a time from an existing SAS dataset into the Program Data Vector (PDV). It is the primary mechanism for reading SAS datasets in the DATA step, and multiple SET statements can be used for interleaving or one-to-one merging.
4What is the correct syntax for reading a delimited text file in a SAS DATA step?
A.PROC IMPORT DATAFILE="file.csv"
B.INFILE "file.csv" DLM=","; INPUT var1 var2 var3;
C.READ "file.csv" DELIMITER=","
D.LOAD DATA FROM "file.csv"
Explanation: The INFILE statement specifies the external file location and the DLM= option defines the delimiter. The INPUT statement names the variables and their types. Together they read raw delimited data into SAS.
5What is the difference between character and numeric variables in SAS?
A.Character variables store text up to 32,767 bytes; numeric variables store numbers as 8-byte floating point by default
B.Character variables are always shorter than numeric variables
C.Numeric variables can store text if formatted correctly
D.There is no difference in SAS
Explanation: Character variables store text strings with a maximum length of 32,767 bytes. Numeric variables are stored as 8-byte (64-bit) double-precision floating point numbers by default, which can represent integers exactly up to 2^53.
6How do you sort observations in a SAS dataset?
A.Use the ORDER BY clause in a DATA step
B.Use PROC SORT with a BY statement specifying the sort variables
C.Use PROC PRINT with an ORDER option
D.Sort manually by rearranging rows
Explanation: PROC SORT reorders observations in a SAS dataset. The BY statement specifies which variables to sort by and in what order (ascending by default, DESCENDING keyword for reverse). The OUT= option creates a new sorted dataset.
7What does the MERGE statement do in a SAS DATA step?
A.Combines variables from two datasets side by side
B.Combines observations from multiple SAS datasets horizontally based on common BY variables
C.Appends rows from one dataset to another
D.Calculates the median of merged values
Explanation: The MERGE statement combines observations from two or more datasets horizontally. When used with a BY statement, it performs a match-merge, joining observations with matching BY variable values from each dataset.
8What is the purpose of the IF-THEN/ELSE statement in a SAS DATA step?
A.To define a new procedure
B.To conditionally execute statements based on whether a logical expression is true or false
C.To create a loop
D.To format output
Explanation: IF-THEN/ELSE provides conditional processing in the DATA step. If the condition is true, the THEN clause executes. If false, execution passes to the ELSE clause (if present). Multiple conditions can be chained with ELSE IF.
9How do you create a new variable in a SAS DATA step?
A.Use the CREATE VARIABLE statement
B.Use an assignment statement: new_var = expression;
C.Use PROC NEWVAR
D.Declare the variable with the VAR keyword
Explanation: New variables are created implicitly through assignment statements in the DATA step. For example, total = price * quantity; creates a new numeric variable called total. SAS automatically determines the variable type from the expression.
10What is the purpose of the RETAIN statement in a SAS DATA step?
A.To keep the dataset in memory
B.To prevent a variable from being reset to missing at the beginning of each iteration of the DATA step
C.To retain the output dataset after the program ends
D.To keep selected observations
Explanation: By default, SAS resets variables created in the DATA step to missing at the start of each iteration. The RETAIN statement prevents this reset, allowing a variable to keep its value across iterations. This is essential for running totals and cumulative calculations.

About the SAS Base Programming Exam

The SAS Base Programming Specialist certification validates your ability to read and create data files, create reports using Base SAS procedures, manipulate and transform data, and identify and correct syntax and programming logic errors in SAS 9.4.

Questions

43 scored questions

Time Limit

2 hours 15 minutes

Passing Score

Scaled 725/1000

Exam Fee

$180 (SAS Institute)

SAS Base Programming Exam Content Outline

20-25%

Access and Create Data Structures

LIBNAME, SET, PROC IMPORT, INFILE, INPUT, data types, and library management

35-40%

Manage Data

SORT, MERGE, IF-THEN, functions, formats, DO loops, and data manipulation

15-20%

Error Handling

SAS log, debugging, missing values, syntax errors, and _ERROR_

15-20%

Generate Reports and Output

PROC PRINT, MEANS, FREQ, REPORT, TABULATE, ODS, and formatting

How to Pass the SAS Base Programming Exam

What You Need to Know

  • Passing score: Scaled 725/1000
  • Exam length: 43 questions
  • Time limit: 2 hours 15 minutes
  • Exam fee: $180

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

SAS Base Programming Study Tips from Top Performers

1Focus on Manage Data (35-40%) as the largest domain
2Practice writing SAS code by hand - the exam is performance-based
3Understand the difference between INPUT function (char-to-num) and PUT function (num-to-char)
4Know how missing values propagate in arithmetic (use SUM function to avoid)
5Master MERGE with BY for combining datasets and understand FIRST./LAST. processing

Frequently Asked Questions

How many questions are on the SAS Base Programming exam?

The A00-231 exam has 40-45 multiple-choice and performance-based questions to be completed in 135 minutes.

What score do I need to pass?

You need a scaled score of 725 out of 1000. The scoring is performance-based.

How much does the exam cost?

The exam fee is $180 USD worldwide. Academic discounts are available for students and educators.

What is the exam based on?

The exam is based on SAS 9.4 M5 and tests practical programming skills through performance-based scenarios.