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

  • Exam Code: C9050-042
  • Exam Name: Developing with IBM Enterprise PL/I
  • Updated: Sep 22, 2026   Q&As: 140 Questions and Answers

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IBM C9050-042 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Performance and Optimization15%- I/O and processing performance
- Memory and storage efficiency
- Compiler options and runtime tuning
Topic 2: Advanced PL/I Concepts25%- Object-oriented features in PL/I
- Error and exception handling
- Structures and records
- Pointers and dynamic memory allocation
- Strings and arrays
Topic 3: Debugging, Testing and Maintenance15%- Unit testing and code validation
- Debugging techniques and tools
- Compilation and listing analysis
Topic 4: File Processing and Database Connectivity20%- Sequential and VSAM file processing
- Database connectivity and SQL integration
- Data manipulation and transaction control
Topic 5: PL/I Language Fundamentals25%- Procedures and functions
- Variables, constants, and expressions
- Control structures
- I/O operations and file handling
- Syntax and data types

IBM Developing with IBM Enterprise PL/I Sample Questions:

Question #1

Which of the following is LEAST likely to be performed by a batch program?

  • A. User interaction
  • B. Sorting
  • C. Production of pay checks
  • D. Sequential file processing
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #2

In which of the following groups of compiler options could all the options specified cause the compiler to
generate code which requires more time at execution?

  • A. APCH(5),BIFPREC(31),NOTESTMTUNE(5),NOSERVICE
  • B. OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)
  • C. OPTIMIZE(2),DEFAULT(REORDER,NOLAXDCL,NOLAXCTL),STORAGE,MMTEMP(1000)
  • D. ATTRIBUTES(FULL),XREF(FULL),DEFAULT(EVENDEC,DUMMY(UNALIGNED)),OFFSET
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #3

The following structure is used when writing a file on Intel architecture which is sent to the mainframe:
DCL 1 A,
2 B FIXED BIN(31),
2 C CHAR (100) VAR,
2 D FIXED BIN(31);
How must this structure be declared on the mainframe if the file is to be read correctly?

  • A. DCL1 A,
    2 B FIXED BIN(31) BIGENDIAN, 2 C CHAR (100) VAR BIGENDIAN, 2 D CHAR (10);
  • B. D CL 1 A,
    2 B FIXED BIN(31) BIGENDIAN,
    2 C CHAR (100) VAR,
    2 D CHAR (10);
  • C. DCL1 A,
    2 B FIXED BIN(31) LITTLEENDIAN,
    2 C CHAR (100) VAR LITTLEENDIAN,
    2 D CHAR (10);
  • D. DCL1 A,
    2 B FIXED BIN(31) LITTLEENDIAN,
    2 C CHAR (100) VAR,
    2 D CHAR (10);
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

In the following example how many lines, if any, will be printed?
GRAPH: PROC OPTIONS(MAIN);
DCL I FIXED BIN(31);
DCL POINTS FIXED BIN(31);
CALL INIT_POINTS;
DO I = 1 TO 100;
GET LIST(POINTS);
CALL PLOT_NEXT(POINTS);
END;
INIT_POINTS: PROC;
DCL I FIXED BIN(31);
DCL POINTS(1000) FIXED BIN (31);
DCL BAR CHAR (100) INIT((100)'*') STATIC;
DO I 1 TO 10;
POINTS(I) = I;
PUT SKIP LIST (POINTS(I),SUBSTR(BAR,1,I));
END;
RETURN;
PLOT_NEXT: ENTRY(I);
POINTS(I) = I;
PUT SKIP LIST(POINTS(I),SUBSTR(BAR,1 I));
END;
END GRAPH;

  • A. 110
  • B. 10
  • C. 100
  • D. It is unpredictable as the program will fail.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

Given the following code, what will happen?
DCL(K, L) FIXED DEC (1);
K= 1;
L = 2;
PUT SKIP LIST (12+K/L);

  • A. The resulting value is 6.5.
  • B. The output is 12.4999999999999.
  • C. The program ends abnormally at runtime.
  • D. The output is 12.5.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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