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

  • Exam Code: C9050-042
  • Exam Name: Developing with IBM Enterprise PL/I
  • Updated: Sep 07, 2026     Q & A: 140 Questions and Answers

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IBM C9050-042 Exam Syllabus Topics:

SectionObjectives
Topic 1: Program Control and Logic- Control statements
  • 1. Loops and iteration
    • 2. Conditional logic (IF, SELECT)
      Topic 2: File Handling and Data Management- Sequential and indexed file processing
      • 1. Record handling and buffers
        • 2. File input/output operations
          Topic 3: Debugging and Optimization- Debugging techniques
          • 1. Runtime diagnostics and tracing
            • 2. Performance tuning basics
              Topic 4: IBM Enterprise PL/I Features- Enterprise extensions
              • 1. Built-in functions and system interfaces
                • 2. Error handling and exception control
                  Topic 5: PL/I Language Fundamentals- Basic syntax and program structure
                  • 1. Program compilation and execution flow
                    • 2. Identifiers, keywords, and operators
                      - Data types and declarations
                      • 1. Fixed and floating-point data types
                        • 2. Arrays and structures

                          IBM Developing with IBM Enterprise PL/I Sample Questions:

                          Question 1

                          Given the following code whatwill be output, if an,thing?
                          DCLX FIXED DEC(5,2) INIT (-123.45);
                          DCL S CHAR (7);
                          PUT STRING (S) EDIT(X) (A(7));
                          PUT DATA (5);

                          A. S=' -123.4'
                          B. S='123.45'
                          C. The program ends abnormally at runtime with condition CONVERSION.
                          D. S='-123.45';


                          Question 2

                          Prerequisite:
                          A sorted input dataset with record length 100 contains at least one record for each of the values '1', '2', '3'
                          in the first byte. The applied sort criteria is 1,100,ch,a.
                          Requirements:
                          1 .) All records with '1' in the first byte must be ignored.
                          2 .) All records with '2' in the first byte must be written to the output dataset.
                          3 .) If there is a '3' in the first byte, the read iteration must be left.
                          4 .) The program must not abend or loop infinitely.
                          If the code below does not fulfill the specifications provided above, which of the following is the most likely
                          reason?
                          DCL DDIN FILE RECORD INPUT;
                          DCL DDOUT FILE RECORD OUTPUT;
                          DCL 1 INSTRUC,
                          3 A CHAR(1),
                          3 * CHAR(99);
                          DCL EOF_IN BIT(1) INIT('0'B);
                          DCL (Z1,Z2,Z3,ZO) BIN FIXED(31) INIT(0);
                          ON ENDFILE(DDIN) EOF_IN = '1'B;
                          READ FILE(DDIN) INTO (INSTRUC);
                          LOOP: DO WHILE (^EOF_IN);
                          SELECT(INSTRUC.A);
                          WHEN('1') DO;
                          Z1 +-= Z1;
                          ITERATE LOOP;
                          END;
                          WHEN('3') DO;
                          Z3 = Z3+1;
                          LEAVE LOOP;
                          END;
                          WHEN('2') DO;
                          Z2 = Z2+1;
                          WRITE FILE(DDOUT) FROM(INSTRUC);
                          END;
                          OTHER DO;
                          ZO = ZO+1;
                          PUT SKIP LIST(INSTRUC.A);
                          END;
                          END;/*select*/
                          READ FILE(DDIN) INTO(INSTRUC);
                          END ;/*loop*/

                          A. The code does not fulfill the requirement because not all records with '2' in the first byte will be written to the output dataset.
                          B. The code does not fulfill the requirement because the last record with '2' in the first byte will be written twice to the output dataset.
                          C. The code does not fulfill the requirement because the program will loop infinitely.
                          D. The code fulfills the requirement.


                          Question 3

                          Which of the following may be an advantage of the BEGIN OPTIONS (INLINE) statement?

                          A. The program uses less stack storage.
                          B. The code runs faster because more variables will be optimized in the BEGINblock.
                          C. The program runs faster because all variables declared inside the BEGIN block are already allocated
                          when the block containing the BEGINblock is entered.
                          D. The program uses less heap storage.


                          Question 4

                          What would the attribute table in a compile list be used for when looking at the variable in a dump?

                          A. Find where variable is used
                          B. Find name of variable
                          C. Find hex offset of variable
                          D. Find variable attributes


                          Question 5

                          Which of the following is LEAST likely to be performed by an online application?

                          A. Transaction processing
                          B. Sorting
                          C. End user interaction
                          D. Checkpoint/restart logic


                          Solutions:

                          Question 1
                          Answer: A
                          Question 2
                          Answer: C
                          Question 3
                          Answer: C
                          Question 4
                          Answer: D
                          Question 5
                          Answer: D

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