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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Which compiler option causes the compiler to flag any IF, WHILE, UNTIL and WHEN clauses that do not
have the attributes BIT(1) NONVARYING?

A) RULES(NOLAXIF)
B) RULES(NOLAXWHEN)
C) RULES(NOLAXWHILE)
D) RULES(NOLAXUNTIL)

2. 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 lines 3, 8, and 9
C) After line 3
D) After line 6

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

4. In a multithreading environment, when can a race condition occur between two threads?

A) When the threads have the same priority
B) When they periorm an operation on same memory area
C) When they operate synchronously
D) When they cause a deadlock

5. How much storage in bytes will be allocated for the following declaration?
DCL 1 S(10) ALIGNED,
2 A BIN FIXED(15),
2 B DEC FIXED(3),
2 C CHAP(3);

A) 69
B) 79
C) 80
D) 70

Solutions: