SASInstitute A00-211 問題集

質問 1：
The following SAS program is submitted:
data allobs;
set sasdata.origin (firstobs = 75 obs = 499);
run;
The SAS data set SASDATA.ORIGIN contains 1000 observations.
How many observations does the ALLOBS data set contain?
A. 425
B. 1000
C. 499
D. 424
正解：A

質問 2：
The following SAS program is submitted:
data work.test;
array agents{4} $ 12 sales1 - sales4;
run;
Which one of the following represents the variables that are contained in the output data set?
A. None, the DATA step fails because the ARRAY statement can reference only pre-existing variables.
B. SALES1, SALES2, SALES3, SALES4
C. None, the DATA step fails because the ARRAY statement can reference only numeric data.
D. AGENTS1, AGENTS2, AGENTS3, AGENTS4
正解：B

質問 3：
A raw data record is listed below:
--------10-------20-------30
1999/10/25
The following SAS program is submitted:
data projectduration;
infile 'file-specification';
input date $ 1 - 10;
run;
Which one of the following statements completes the program above and computes the duration of the project in days as of today's date?
A. duration = today( ) - input(date,ddmmyy10.);
B. duration = today( ) - put(date,yymmdd10.);
C. duration = today( ) - input(date,yymmdd10.);
D. duration = today( ) - put(date,ddmmyy10.);
正解：C

質問 4：
The following SAS program is submitted:

What new variables are created?
A. Difcount1, Difcount2 and Difcount3
B. Janpt, Febpt, and Marpt
C. Patients1, Patients2 and Patients3
D. Diff1, Diff2 and Diff3
正解：A

質問 5：
Which statement correctly computes the average of four numerical values?
A. average = mean(num1 num2 num3 num4);
B. average = mean(ofnum1 - num4)
C. average = mean(num1, num4);
D. average = mean(num1 - num4);
正解：B

質問 6：
The following SAS program is submitted:

How many observations are written to the WORK.VOLUME data set?
Enter your numeric answer in the space below.
正解：
1

質問 7：
The data set RALESTATE has the variable LOCALFEE with a format or 9. and a variable COUNTRYFEE with a format or 7.; The following SAS program is submitted:
data history;
format local fee country fee percent6.;
set realestate;
local fee = local fee / 100;
country fee = country fee / 100;
run;
What are the formats of the variables LOCALFEE and COUNTRYFEE in the output dataset?
A. LOCALFEE has format of 9. and COUNTRYFEE has a format of 7.
B. The data step fails execution; there is no format for LOCALFEE
C. LOCALFEE has format of 9. and COUNTRYFEE has a format of percent6.
D. LOCALFEE has format of percent6. and COUNTRYFEE has a format of percent6.
正解：D

質問 8：
The SAS data set WORK STAFF has three variables:
The following SAS program is submitted:

What is the length of the Name variable in the data set WORK STAFF_UPDATE?
A. 10
B. 8
C. 15
D. 20
正解：A