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IBM C9050-042 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: IBM Enterprise PL/I Features | - Integration Technologies
|
| Topic 2: Program Structure and Control | - Procedures and Blocks
|
| Topic 3: File and I/O Processing | - Input and Output Formatting
|
| Topic 4: Data Processing | - Character and String Handling
|
| Topic 5: PL/I Language Fundamentals | - Expressions and Operators
|
IBM Developing with IBM Enterprise PL/I Sample Questions:
Which of the following techniques, if any, can be used to parallelize a PL/I program?
- A. Parallelization is not possible in PL/I program.
- B. Attach a thread to every external entry in the program.
- C. Attach threads to pieces or work that are independent from othersB.Attach a thread to every subroutine
in the program.
Correct Answer: C 🗳️
Given the following declarations, which statement correctly refers to X?
DCL R CHAP(10);
DCLX CHAR(10) BASED;
DCL P PTR;
DCLZ CHAR(10);
P = ADDR(R);
- A. P = ADDR(X);
- B. Z = X;
- C. X='THIS IS X';
- D. Z = P -> X;
Correct Answer: D 🗳️
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 VALUE on the declares for UC and LC.
- C. Use the UPPERCASE function instead of SET_TO_UPPERCASE.
- D. RETURN(TRANSLATE(CHARSTR,UC,LC)) to avoid the unnecessary assignment to R.
Correct Answer: C 🗳️
A module which is serially reusable has which of the following characteristics?
- A. All or part of it may be replaced at any time by the operating system
- B. Must contain the necessary logic to reset control variables and data areas at entry or exit and a second
task may not enter the module until the first task has finished - C. Is intended for single use only and must be refreshed from disk before it can be invoked again
- D. Is designed for concurrent execution by multiple tasks
Correct Answer: B 🗳️
In the following example what value will be printed to SYSPRINT, if any, from the PUT LIST in PGM_A?
PGM_A PROC;
DCL INPARM CHAR (10) INIT('FIRST CALL);
DCL P_OUT PTR;
DCL OUTPARM CHAR(10) BASED (P_OUT);
DCL PGM_B ENTRY(CHAR(10),PTR) EXTERNAL:
CALL P0MB (INPARM,P OUT);
IF OUTPARM = 'RESULT 'THEN
DO;
INPARM = ";
CALL PGM_B (INPARM,P_OUT);
END;
PUT LIST(OUTPARM);
END;
PGM_B: PROC(INPARMP_OUT);
DCL INPARM CHAR (10);
DCL P_OUT PTR;
DCL OUTPARM CHAR (10) INIT(");
P_OUT = ADDR(OUTPARM);
IF INPARM ='FIRST CALL THEN
OUTPARM = 'RESULT ';
ELSE
OUTPARM = 'NO RESULT';
END;
- A. 'RESULT'
- B. Blanks
- C. Unpredictable
- D. 'NO RESULT'
Correct Answer: C 🗳️
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