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

C9050-042

Exam Code: C9050-042

Exam Name: Developing with IBM Enterprise PL/I

Updated: Jul 29, 2026

Q & A: 140 Questions and Answers

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IBM C9050-042 Exam Syllabus Topics:

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

                          IBM Developing with IBM Enterprise PL/I Sample Questions:

                          1. Which of the following compiler options should be checked first when addressing performance issues in a
                          PL/I program?

                          A) OPT and DEFAULT
                          B) ATTRIBUTES and LIST
                          C) RENT and MAXMEM
                          D) ARCH and MAXSTMT


                          2. Which of the following statements about the newest PL/l compiler is NOT suitable to convince a
                          stakeholder that migration to the new PL/I compiler is necessary?

                          A) The new compiler provides new language features.
                          B) The new compiler will tolerate more erroneous code.
                          C) The new compiler is necessary because current versions of DB2 and CICS only officially support
                          compilers which are "in service".
                          D) The new compiler takes advantage of the current machine instruction set.


                          3. 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='-123.45';
                          B) The program ends abnormally at runtime with condition CONVERSION.
                          C) S='123.45'
                          D) S=' -123.4'


                          4. 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) Missing library at link time
                          C) An incorrect DECLARE for the external entry
                          D) A mismatch in names between the CALL and the actual procedure


                          5. 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) Z = P -> X;
                          B) Z = X;
                          C) P = ADDR(X);
                          D) X='THIS IS X';


                          Solutions:

                          Question # 1
                          Answer: A
                          Question # 2
                          Answer: B
                          Question # 3
                          Answer: D
                          Question # 4
                          Answer: A
                          Question # 5
                          Answer: A

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