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SAS EXAM QUESTIONS & ANSWERS
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SAS EXAM QUESTIONS & ANSWERS
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SAS EXAM QUESTIONS & ANSWERSSAS stands for - Answers -Statistical Analysis System
4 data-driven tasks for SAS - Answers -data access, data management, data analysis,
data presentation
file extension for (log file, code, output, dataset) - Answers -.log, .sas, .out, .sas7bdat
3 ways to create sas dataset - Answers -from scratch, from raw dataset, from existing
sas dataset
4 uses for data statements - Answers -create SAS dataset from scratch, create SAS
dataset from raw dataset, check for and correct errors in a dataset, create a SAS
dataset from existing SAS datasets
5 uses for proc statements - Answers -create report that lists data, produce descriptive
statistics, create summary report, produce plots and charts, produce other SAS
datasets
base date for sas dates - Answers -January 1, 1960
the sas variable (name/value) is case sensitive, but the sas varaible (name/value) is not
case sensitive. - Answers -value, name
default length of all sas variables - Answers -8
number of digits sas can hold for numeric variable values before converting them to
scientific notation - Answers -12
keyword used in proc sort to keep dataset in original order - Answers -out
proc sort data = ia.employee out = ia.employee_sorted;
by x;
run;
keyword used in proc sort to remove observations that have repeat values for every
variable
example - Answers -nodup
proc sort data = ia.data nodup;
by x;
run;
, keyword used in proc sort to remove observations that have repeat values for sorted
variable - Answers -nodupkey
proc sort data = ia.data nodupkey;
by x;
run;
keyword used in proc freq to identify variable(s) to be used in frequency tables -
Answers -tables
proc freq data = ia.employee;
tables x y x*y;
run;
keyword used for conditional statements in proc statements - Answers -where
proc freq data = ia.data;
where x=1;
tables y;
run;
keyword used to export proc freq results to sas dataset - Answers -out
proc freq data = ia.data;
tables x / out = employee_temp;
run;
keyword used to change the variable name to be printed in proc print output - Answers -
label (x2)
proc print data = ia.data label;
label x = 'employee';
run;
instruction to compare variables and/or constants in order to extract, add, or adjust
variables in a SAS dataset - Answers -operator
4 types of operators - Answers -arithmetic operator, comparison operator, logical
operator, special operator
keyword that removes page number from output - Answers -nonumber
options nonumber;
options number;
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