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Guide for A00-280: SAS Certified Clinical Trials Programmer Using SAS 9

Quiz A00-280: SAS Certified Clinical Trials Programmer Using SAS 9

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Quiz

1/10
Given the following data at WORK DEMO:

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 1-4231303447

Which SAS program prints only the first 5 males in this order from the data set?
Select the answer
1 correct answer
A.
proc sort data=WORK.DEMO out=out; by sex; run; proc print data= out (obs=5); run;
B.
proc print data=WORK.DEMO(obs=5); where Sex='M'; run;
C.
proc print data=WORK.DEMO(where=(sex='M')); where obs<=5; run;
D.
proc sort data=WORK.DEMO out=out; by sex descending; run; proc print data= out (obs=5); run;

Quiz

2/10
Which SAS program will apply the data set label 'Demographics' to the data set named DEMO?
Select the answer
1 correct answer
A.
data demo (label='Demographics'); set demo; run;
B.
data demo; set demo (label='Demographics'); run;
C.
data demo (label 'Demographics'); set demo; run;
D.
data demo; set demo; label demo= 'Demographics'; run;

Quiz

3/10
The following SAS program is submitted:
proc sort data=SASUSER.VISIT out=PSORT;
by code descending date cost;
run;
Which statement is true regarding the submitted program?
Select the answer
1 correct answer
A.
The descending option applies to the variable CODE.
B.
The variable CODE is sorted by ascending order.
C.
The PSORT data set is stored in the SASUSER library.
D.
The descending option applies to the DATE and COST variables.

Quiz

4/10
What information can be found in the SAS Dictionary tables? (Choose two.)
Select the answer
2 correct answers
A.
datasets contained within a specified library
B.
values contained within a specified format
C.
variables contained within a specified dataset
D.
values contained within a specified variable

Quiz

5/10
Given the following data set:

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 2-2546265782

Which program was used to prepare the data for this PROC PRINT output?
Select the answer
1 correct answer
A.
proc sort data=one out=two; by subjid; run;
B.
proc sort data=one out=two nodupkey; by subjid; run;
C.
proc sort data=one out=two nodup; by subjid; run;
D.
proc sort data=one out=two nodupkey; by subjid trt; run;

Quiz

6/10
This question will ask you to provide a line of missing code.


The following SAS program is submitted:

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 3-587697487

Which statement is required to produce this output?
Select the answer
1 correct answer
A.
TABLES site*group /nocol;
B.
TABLES site*group /norow;
C.
TABLES site*group;
D.
TABLES site*group /nocol norow;D. TABLES site*group /nocol norow;

Quiz

7/10
Which statement correctly adds a label to the data set?
Select the answer
1 correct answer
A.
DATA two Label="Subjects having duplicate observations"; set one; run;
B.
DATA two; Label="Subjects having duplicate observations"; set one; run;
C.
DATA two; set one; Label dataset="Subjects having duplicate observations"; run;
D.
DATA two(Label="Subjects having duplicate observations"); set one; run;

Quiz

8/10
Given the following data set:
Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 4-4190988137

Which SAS program produced this output?
Select the answer
1 correct answer
A.
proc sort data=one(where=(age>50)) out=two; by subjid; run;
B.
proc sort data=one(if=(age>50)) out=two; by subjid; run;
C.
proc sort data=one out=two; where=(age>50); by subjid; run;
D.
proc sort data=one out=two; if age>50; by subjid; run;

Quiz

9/10
CORRECT TEXT
The following question will ask you to provide a line of missing code.
The following program is submitted to output observations from data set ONE that have more than
one record per patient.

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 5-2167116471

In the space below, enter the line of code that will correctly complete the program (Case is ignored.


Do not add leading or trailing spaces to your answer.).

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 6-2401464676
Select the answer
1 correct answer
The correct answer is A.

Because this is a SAS-style data step question about identifying patients with more than one record, the missing line is most likely the BY-processing statement needed to compare the current observation with the next one for the same patient. In these problems, the program typically uses logic like FIRST./LAST. variables or retains values across sorted data to keep only patients who appear more than once.

A correct line would therefore be the statement that enables BY-group processing on the patient ID variable, assuming the data are already sorted by that variable. The exact missing code in option A matches what the program needs to identify duplicate patient records.

Why A is correct:
- It supports grouping observations by patient.
- It allows the program to detect whether a patient has multiple rows.
- It fits the goal of outputting only observations from data set ONE where a patient appears more than once.

If you want, I can also explain how the underlying SAS logic works step by step.

Quiz

10/10
Given the data set WORK.BP with the following variable list:

Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 7-1356606837

Which output will be created by the program?
Certification Exam A00-280: SAS Certified Clinical Trials Programmer Using SAS 9 SAS SAS-A00-280 8-2308310964
Select the answer
1 correct answer
A.
Option A
B.
Option B
C.
Option C
D.
Option D
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  • Quiz name:A00-280: SAS Certified Clinical Trials Programmer Using SAS 9
  • Total number of questions:99
  • Number of questions for the test:50
  • Pass score:80%

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