IBM C9050-042 : Developing with IBM Enterprise PL/I

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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

Question 1

A PL/I program performance analwer can best help identify which of the following?

A. Incorrect program logic
B. Adequate code coverage
C. CPU hotspots and elapsed time percentages by procedure
D. Changes needed to database tables

Question 2

What is a program specification document?

A. A description of what the program does and how it can be used
B. A description of how the program does its work
C. The pseudocode of the program
D. The history of changes of the program and how it was used

Question 3

SUBSCRIPTRANGE checks which of the following?

A. The subscripts of an array are checked for conformance with iSUB defining rules.
B. The value of each subscript used to refer to an array element is checked for validity after the element is
accessed.
C. The address generated for accessing an array element is checked to be sure it falls within the storage
allocated to the array.
D. The value of each subscript used to refer to an array element is checked for validity beforethe element
is accessed.

Question 4

The following function converts a character string to uppercase. What is the best way to improve the
performance?
SET_TO_UPPERCASE: PROC(CHARSTR) RETURNS (CHAR(120) VARYING);
DCL CHARSTR CHAR(120) VARYING;
DCL UCCHAR(26) INIT('ASCDEFGHIJKLMNOPQRSTUVWXYZ');
DCL LCCHAR(26) INlT('abcdefghijkImnopqrstuvxy'z');
DCL RCHAR(120) VARYING INIT(");
R = TRANSLATE(CHARSTR,UC,LC);
RETURN(R);
END SET_TO_UPPERCASE;

A. Declare variables UC and LC as STATIC.
B. Use the UPPERCASE function instead of SET_TO_UPPERCASE.
C. Use VALUE on the declares for UC and LC.
D. RETURN(TRANSLATE(CHARSTR,UC,LC)) to avoid the unnecessary assignment to R.

Question 5

Given the following code, which statement will produce an E level preprocessor message?
%DCL ABC ENTRY;
%ABC: PROC (X,Y) STATEMENT RETURNS(CHAR); DCL(XY) CHAR;
IF ^PARMSET(X) THEN NOTE('NO X ',0);
IF ^PARMSET(Y) THEN NOTE('NO Y '8');
RETURN('/* '!!X!!YI!'C */');
%END ABC;

A. ABC (A,);
B. ABC(,B);
C. ABC Y(B)X(A);
D. ABC (A,B);

Solutions: