SAS Chapter 1 Basic Concepts
Practice preparing for the SAS certification test.
- 1.
How many observations and variables does the data set below contain?- A.
3 observations, 4 variables
- B.
3 observations, 3 variables
- C.
4 observations, 3 variables
- D.
Can't tell because some values are missing
- 2.How many steps are executed when the program below is processed? data user.tables; infile jobs; input date name $ job $; run; proc sort data=user.tables; by name; run; proc print data=user.tables; run;
- A.
Three
- B.
Four
- C.
Five
- D.
Six
- 3.
What type of variable is the variable AcctNum in the data set below?
- A.
Numeric
- B.
Character
- C.
Can be either character or numeric
- D.
Can't tell from the data shown
- 4.
What type of variable is the variable Wear in the data set below, assuming that there is a missing value in the data set?
- A.
Numeric
- B.
Character
- C.
Can be either character or numeric
- D.
Can't tell from the data shown
- 5.Which of the following variable names is valid?
- A.
4BirthDate
- B.
$Cost
- C.
_Items_
- D.
Tax-Rate
- 6.Which of the following files is a permanent SAS file?
- A.
Sashelp.PrdSale
- B.
Sasuser.MySales
- C.
Profits.Quarter1
- D.
All of the above
- 7.In a DATA step, how can you reference a temporary SAS data set named Forecast?
- A.
Forecast
- B.
Work.Forecast
- C.
Sales.Forecast
- D.
Only a and b above
- 8.
What is the default length for the numeric variable Balance?
- A.
5
- B.
6
- C.
7
- D.
8
- 9.How many statements does the following SAS program contain? proc print data=new.prodsale label double; var state day price1 price2; where state='NC'; label state='Name of State'; run;
- A.
Three
- B.
Four
- C.
Five
- D.
Six
- 10.What is a SAS library?
- A.
Collection of SAS files, such as SAS data sets and catalogs
- B.
In some operating environments, a physical collection of SAS files
- C.
In some operating environments, a logically related collection of SAS fils
- D.
All of the above
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