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

C9050-042 real exams

Exam Code: C9050-042

Exam Name: Developing with IBM Enterprise PL/I

Updated: Sep 06, 2026

Q & A: 140 Questions and Answers

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About IBM C9050-042 Exam

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IBM C9050-042 Exam Syllabus Topics:

SectionObjectives
IBM Enterprise PL/I Features- Integration Technologies
  • 1. Interoperability with C and Java
  • 2. JSON support
  • 3. XML support
- Compiler and Runtime Features
  • 1. Debugging techniques
  • 2. Compiler options
  • 3. Optimization and diagnostics
Data Processing- Arrays and Structures
  • 1. Array manipulation
  • 2. Structure definitions
  • 3. Based and controlled storage
- Character and String Handling
  • 1. Pattern and conversion operations
  • 2. Built-in string functions
  • 3. Substring processing
File and I/O Processing- File Operations
  • 1. Record processing
  • 2. OPEN, READ, WRITE, and CLOSE statements
  • 3. Sequential and direct access files
- Input and Output Formatting
  • 1. GET and PUT statements
  • 2. Formatting data
PL/I Language Fundamentals- Expressions and Operators
  • 1. Logical and relational operators
  • 2. String operations
  • 3. Arithmetic expressions
- Data Types and Declarations
  • 1. Attributes and storage classes
  • 2. Initialization and constants
  • 3. Scalar and aggregate data
Program Structure and Control- Control Flow
  • 1. Iterative processing
  • 2. Conditional statements
  • 3. Branching and exception handling
- Procedures and Blocks
  • 1. Main and subprocedures
  • 2. Scope and declarations
  • 3. Parameter passing

IBM Developing with IBM Enterprise PL/I Sample Questions:

Question 1

Which of the following is NOT useful to translate business logic into the appropriate technical design?

A. Nassi-Shneiderman diagrams (structograms)
B. Jackson Structured Programming method
C. GANTT charts
D. Pseudo code


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


Question 3

Given the following declaration, how many bytes will be occupied by the structure?
DCL 1 A ALIGNED, 2 B FIXED BIN (31), 2 C CHAR (1), 2 D FIXED BIN (31), 2 E FIXED DEC (5,2), 2 F
POINTER;

A. 19
B. 16
C. 20
D. 24


Question 4

What is a program internal specification document?

A. A description of how the program does its work
B. The history of changes of the program and how it worked
C. A summary of the program's performance data
D. A description of how the program can be used


Question 5

Which of the following compile list sections would be used to find the location of a static variable in a
dump?

A. Table of Offsets and Statement Numbers
B. Source Listing
C. Attribute/Xref Table
D. Storage Offset Listing


Solutions:

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

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