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

  • Exam Code: C9050-042
  • Exam Name: Developing with IBM Enterprise PL/I
  • Updated: Jul 30, 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: File Processing and Database Connectivity20%- Sequential and VSAM file processing
- Database connectivity and SQL integration
- Data manipulation and transaction control
Topic 3: Debugging, Testing and Maintenance15%- Unit testing and code validation
- Debugging techniques and tools
- Compilation and listing analysis
Topic 4: 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 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:

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


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


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);


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.


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.


Solutions:

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

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