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A00-280 Real Exam Questions

SAS Certified Clinical Trials Programmer Using SAS 9

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Question 1 Single choice

You have been asked to import an Excel spreadsheet.

What will lead to substantial differences between the original Excel spreadsheet and the resulting SAS data set?

  1. A

    the number of rows to be read from the Excel file

  2. B

    the number of columns to be read from the Excel file

  3. C

    multiple value types within a single column

  4. D

    multiple value types within a single row

Show answer and explanation

Correct answer: C

Question 2 Single choice

Given the following entry in the SAS log:

Which alternate method could you use to?

?Transpose all data

?Not produce a warning message in the log

  1. A

    Use PROC TRANSPOSE with a WHERE clause to omit records with missing VISIT values

  2. B

    Use PROC COPY with SELECT statements

  3. C

    Use PROC DATASETS with SELECT and MODIFY statements

  4. D

    Use a DATA step with conditional OUTPUT statements

Show answer and explanation

Correct answer: D

Question 3 Single choice

The following SAS program is submitted:

What is the value of the second variable in the data set WORK.DIGESTL?

  1. A

    diverticulosis

  2. B

    divertic

  3. C

    a missing value

  4. D

    No variables are created.

Show answer and explanation

Correct answer: B

Question 4 Single choice

The purpose of the ADaM model is to provide a framework that:

  1. A

    enables the tabulation of the raw source data

  2. B

    enables the creation of study patient profiles

  3. C

    enables the statistical analysis of the data

  4. D

    can be used to generate the CDISC ODM

Show answer and explanation

Correct answer: C

Question 5 Fill in the blank

FILL BLANK

Which CDISC filename contains the following items?
- Variable attributes
- Controlled terminology
- Computational methods
Enter your answer in the space below (Case is ignored. Do not add leading or trailing spaces to your answer.).

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Accepted answer: DEFINE.XML

Question 6 Single choice

You have acquired an existing program from a coworker which uses a macro. It is not immediately clear to you what this macro is doing.

Which OPTION can be used to put the SAS statements generated by the macro execution into the LOG?

  1. A

    MPRINT

  2. B

    SYMBOLGEN

  3. C

    MLOGIC

  4. D

    MRECALL

Show answer and explanation

Correct answer: A

Question 7 Single choice

This question will ask you to provide lines of missing code.
Given the following SCORE data set:

Variable LOCF contains the imputed score that would replace the missing SCORE value (based on last observation carried forward method).

Which SAS statements complete the program?

  1. A

    LOCF = lag(score) ;
    if first.subject then LOCF = . ;
    if score ^= . then LOCF = score ;

  2. B

    if first.subject then LOCF = . ;
    if score = . then LOCF = lag(score) ;

  3. C

    retain LOCF ;
    if first.subject then LOCF = . ;
    if score ^= . then LOCF = score ;

  4. D

    retain score ;
    if first.subject then LOCF = . ;
    if score ^= . then LOCF = score ;

Show answer and explanation

Correct answer: C

Question 8 Single choice

Given the following data set:

Which program was used to prepare the data for this PROC PRINT output?

  1. A

    proc sort data=one out=two;
    by subjid;
    run;

  2. B

    proc sort data=one out=two nodupkey;
    by subjid;
    run;

  3. C

    proc sort data=one out=two nodup;
    by subjid;
    run;

  4. D

    proc sort data=one out=two nodupkey;
    by subjid trt;
    run;

Show answer and explanation

Correct answer: B

Question 9 Fill in the blank

This question will ask you to provide a line of missing code.
Given the following data set LABS(only first 10 lines shown):

In the space below, enter the statement that completes the program to produce the desired output (Case is ignored. Do not add leading or trailing spaces to your answer.).

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Accepted answer: IDLABTEST

Question 10 Single choice

Which statement correctly adds a label to the data set?

  1. A

    DATA two Label="Subjects having duplicate observations"; set one;
    run;

  2. B

    DATA two;
    Label="Subjects having duplicate observations";
    set one;
    run;

  3. C

    DATA two;
    set one;
    Label dataset="Subjects having duplicate observations"; run;

  4. D

    DATA two(Label="Subjects having duplicate observations"); set one;
    run;

Show answer and explanation

Correct answer: D