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IBM C9050-042 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: PL/I Language Fundamentals | 25% | - Procedures and functions - Control structures - I/O operations and file handling - Variables, constants, and expressions - Syntax and data types |
| Topic 2: Performance and Optimization | 15% | - I/O and processing performance - Memory and storage efficiency - Compiler options and runtime tuning |
| Topic 3: Advanced PL/I Concepts | 25% | - Object-oriented features in PL/I - Pointers and dynamic memory allocation - Error and exception handling - Structures and records - Strings and arrays |
| Topic 4: Debugging, Testing and Maintenance | 15% | - Debugging techniques and tools - Compilation and listing analysis - Unit testing and code validation |
| Topic 5: File Processing and Database Connectivity | 20% | - Data manipulation and transaction control - Sequential and VSAM file processing - Database connectivity and SQL integration |
IBM Developing with IBM Enterprise PL/I Sample Questions:
Question 1
Which of the following steps is NOT required to use the IBM Debug Tool on a PL/I program?
A. Have the source code available
B. Plan points where the program should stop during testing
C. Compile with TEST option
D. Write an Language Environment user condition handler
Question 2
In which of the following examples will a dummy argument be passed?
A. PROC (A,B);
DCL (A,B) BIN FIXED;
END C;
END PGM;
B. PGM: PROC OPTIONS(MAIN);
DCL (X,Y) FIXED BIN;
CALL C (X,Y);
C. DCL A EXT ENTRY (FIXED, BINARY);
DCL (X,Y) FIXED BIN;
CALL A(X,Y);
D. DCL A EXT ENTRY (FIXED BINARY);
DCL (X,Y) FIXED BIN;
CALL A(X,Y);
E. DCLA EXT ENTRY;
DCL (X,Y) FIXED BIN;
CALL A(X,Y);
Question 3
Which of the following actions will NOT help increase the maintainability of a program?
A. Replacing subroutines with functions
B. Deleting dead code
C. Consolidating redundant code
D. Proper commenting for each piece of functionality
Question 4
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. Pseudo code
D. GANTT charts
Question 5
Given the following code:
DCL INDATA FILE RECORD INPUT;
DCL INSTRUC CHAR(100);
DCL EOF BIT(1) INIT('0'B);
ON ENDFILE(INDATA) EOF = '1'B;
OPEN FILE(INDATA);
READ FILE(INDATA) INTO(INSTRUC);
DO WHILE (^EOF);
CALL SR_PROCESS;
READ FILE(INDATA) INTO(INSTRUC);
END;
CLOSE FILE(INDATA);
If the database (input file) changes from OS-PS to DB2 view and the necessary syntax has been changed
accordingly, which of the following DB2-related steps is NOT additionally required to guarantee the same
level of stability and functionality?
A. Check the SQLCODE after each EXEC SQL FETCH statement.
B. Check the CURRENT SQLI
C. Set the EOF bit to '1'B, if SQLCODE = 100 (not found).
D. Check the SQLCODE after each EXEC SQL OPEN / CLOSE statement.
Solutions:
| Question 1 Answer: D | Question 2 Answer: C | Question 3 Answer: A | Question 4 Answer: D | Question 5 Answer: B |
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