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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

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

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

3. Which of the following will definitely NOT cause an unresolved external entry?

A) The main procedure name matching the binder or load module 'name'
B) A mismatch in names between the CALL and the actual procedure
C) An incorrect DECLARE for the external entry
D) Missing library at link time

4. Which software model is LEAST appropriate it requirements keep changing?

A) Rapid Application Development model
B) Spiral model (also known as Iterative model)
C) Waterfall model
D) Object-oriented model

5. The Senior Vice President of the organization is onsite for a one day visit. She has asked for a meeting
with the team lead to understand the status of the project. Which of the following is the most appropriate
action for the team lead to take?

A) Walk her through the functional specification for the application
B) Show her the most important APIs that have been defined
C) Take her through the project plan
D) Show the requirements specification as a way for her to understand the project

Solutions: