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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

Question 1

Which of the following declarations is NOT accepted by the compiler?

A. DCL B (3,3) FLOAT DEC (16) INIT ((3)(1), (2)(1,1,1));
B. DCL D (3,3) FLOAT DEC (16) INIT ((*)1);
C. DCL A (3,3) FLOAT DEC (16) INIT ((3)(3)1);
D. DCL C (3,3) FLOAT DEC (16) INIT ((9)1);

Question 2

Input to a SORT routine requires the starting position of each field to be sorted. Which of the following
calculates a value of 5 for field B?
DCL 1 S,
2 A CHAR(4),
2 B BIN FIXED(31);

A. POINTERDIFF(ADDR(S.B), ADDR(S))
B. POINTERDIFF(ADDR(S), ADDR(S.B))
C. POINTERDIFF(ADDR(S), ADDR(S.B)) + 1
D. POINTERDIFF(ADDR(S.B),ADDR(S)) + 1

Question 3

Given the following pseudocode inside a loop, where should the COMMIT action be placed assuming that
there is always a one-to-many relationship between header and detail tables?
1 Find header row 2 IF found 3 Update header row 4 Find detail row 5 IF found THEN 6 Update detail
rows 7 ELSE 8 ENDIF 9 ENDIF

A. After line 8
B. After line 3
C. After lines 3, 8, and 9
D. After line 6

Question 4

Which of the following actions will NOT help increase the maintainability of a program?

A. Deleting dead code
B. Replacing subroutines with functions
C. Proper commenting for each piece of functionality
D. Consolidating redundant code

Question 5

In the following example, what value will be written to SYSPRINT, if anything, by the PUT statement in
PGM_A?
PGM_A: PROC;
DCL INPARM CHAR (12) INIT('FIRST CALL? ');
DCL P_OUT PTR;
DCL OUTPARM CHAR (10) BASED (P_OUT);
DCL PGM_B ENTRY (CHAR(12),PTR) EXTEPNAL;
CALL PGM_B (INPARM,P_OUT);
IF OUTPARM = 'YES' THEN
DO;
INPARM = 'FOLLOW ON';
CALL PGM_B (INPARM,P_OUT);
END;
ELSE
DO;
INPARM = 'NORMAL CALL';
CALL PGM_B (INPARM,P_OUT);
END;
PUT SKIP LIST(OUTPARM);
END;
PGM_B: PROC(INPARM,P_OUT);
DCL INPARM CHAR (12);
DCL P_OUT PTR;
DCL OUTPARM CHAR (12) STATIC INIT(");
P_OUT = ADDR(OUTPARM);
IF INPARM = 'FIRST CALL? ' THEN
OUTPARM = 'YES'; ELSE
IF OUTPARM = " THEN
OUTPARM = 'FIRST CALL';
END;

A. 'YES'
B. The results are unpredictable.
C. blanks
D. 'FIRST CALL'

Solutions: