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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: File Processing and Database Connectivity | 20% | - Database connectivity and SQL integration - Sequential and VSAM file processing - Data manipulation and transaction control |
| Topic 2: Debugging, Testing and Maintenance | 15% | - Unit testing and code validation - Debugging techniques and tools - Compilation and listing analysis |
| Topic 3: Advanced PL/I Concepts | 25% | - Object-oriented features in PL/I - Pointers and dynamic memory allocation - Structures and records - Strings and arrays - Error and exception handling |
| Topic 4: PL/I Language Fundamentals | 25% | - I/O operations and file handling - Procedures and functions - Control structures - Variables, constants, and expressions - Syntax and data types |
| Topic 5: Performance and Optimization | 15% | - I/O and processing performance - Compiler options and runtime tuning - Memory and storage efficiency |
1. Which of the following is LEAST likely to be performed by an online application?
A) Transaction processing
B) Sorting
C) Checkpoint/restart logic
D) End user interaction
2. 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 CURRENT SQLI
B) Check the SQLCODE after each EXEC SQL OPEN / CLOSE statement.
C) Set the EOF bit to '1'B, if SQLCODE = 100 (not found).
D) Check the SQLCODE after each EXEC SQL FETCH statement.
3. Which of the following actions will NOT help increase the maintainability of a program?
A) Proper commenting for each piece of functionality
B) Deleting dead code
C) Replacing subroutines with functions
D) Consolidating redundant code
4. Given the lollowing declarations, what statement will raise STRINGSIZE condition if enabled?
DCLA_STR CHAR (100) VARYING;
DCLB_STR CHAR(10) STATIC;
DCL C_STR CHAR (100);
A) SUBSTR(C_STR, 92) = B_STR;
B) A_STR = B_STR;
C) C_STR = A_STR;
D) C_STR = B_STR;
5. Input to a SORT routine requires the starting position of each field to be sorted. Which of the following
calculates a value of 5 for field B?
DCL 1 S,
2 A CHAR(4),
2 B BIN FIXED(31);
A) POINTERDIFF(ADDR(S), ADDR(S.B)) + 1
B) POINTERDIFF(ADDR(S.B), ADDR(S))
C) POINTERDIFF(ADDR(S.B),ADDR(S)) + 1
D) POINTERDIFF(ADDR(S), ADDR(S.B))
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: C |
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