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IBM C9050-042 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Advanced PL/I Concepts | 25% | - Pointers and dynamic memory allocation - Object-oriented features in PL/I - Error and exception handling - Structures and records - Strings and arrays |
| Topic 2: PL/I Language Fundamentals | 25% | - Variables, constants, and expressions - I/O operations and file handling - Control structures - Procedures and functions - Syntax and data types |
| Topic 3: Performance and Optimization | 15% | - I/O and processing performance - Compiler options and runtime tuning - Memory and storage efficiency |
| Topic 4: Debugging, Testing and Maintenance | 15% | - Compilation and listing analysis - Debugging techniques and tools - Unit testing and code validation |
| Topic 5: File Processing and Database Connectivity | 20% | - Data manipulation and transaction control - Database connectivity and SQL integration - Sequential and VSAM file processing |
IBM Developing with IBM Enterprise PL/I Sample Questions:
1. Given the following pseudocode example, at which label should an unconditional COMMIT be placed
assuming there is a one-to-many relationship between FIL01 and FIL02 and FlL01 contains several
thousand records?
Read record from file FIL01
1 . DO while there are records in FIL01 IF record in FIL01 specifies update THEN DO for all records
matching in FIL02 Update record in FIL02 with information from FIL01 end DO
2 . end IF
3 . Read next record in FIL01
4 . end DO
A) 3
B) 1
C) 4
D) 2
2. Given the following declaration, which code does NOT initialize C completely?
DCL 1 A,
2 B DIM (0:9),
3 C DIM (5) FIXED BIN (31),
3 D CHAR (100) VAR;
A) 3 C DIM (5) FIXED BIN(31) INIT ((HSOUND(C,1))( 0)),
B) 3 C DIM (5) FIXED BIN(31) INIT ((5)1,(*)2),
C) 3 C DIM (5) FIXED BIN(31) INIT ((*)1),
D) 3 C DIM (5) FIXED BIN(31) INIT ((50)1),
3. Which of the following is NOT useful to translate business logic into the appropriate technical design?
A) GANTT charts
B) Jackson Structured Programming method
C) Pseudo code
D) Nassi-Shneiderman diagrams (structograms)
4. When a program reads a variable record format dataset via LOCATE mode, what happens?
A) The ENDFILE condition is never raised.
B) READ pointer points to first data byte in the buffer.
C) READ data is placed in specified area.
D) READ pointer points to the length bytes in the buffer.
5. Which of the following actions will NOT help increase the maintainability of a program?
A) Consolidating redundant code
B) Deleting dead code
C) Proper commenting for each piece of functionality
D) Replacing subroutines with functions
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |






