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| Section | Weight | Objectives |
|---|---|---|
| PL/I Language Fundamentals | 25% | - Syntax and data types - Procedures and functions - Variables, constants, and expressions - Control structures - I/O operations and file handling |
| File Processing and Database Connectivity | 20% | - Data manipulation and transaction control - Database connectivity and SQL integration - Sequential and VSAM file processing |
| Advanced PL/I Concepts | 25% | - Pointers and dynamic memory allocation - Error and exception handling - Structures and records - Strings and arrays - Object-oriented features in PL/I |
| Performance and Optimization | 15% | - Memory and storage efficiency - I/O and processing performance - Compiler options and runtime tuning |
| Debugging, Testing and Maintenance | 15% | - Compilation and listing analysis - Debugging techniques and tools - Unit testing and code validation |
1. The XMLCHAR builtin function provides the ability to do which of the following?
A) Create an XML buffer from a structure
B) Read an XML file into a structure
C) Check XML for well-formedness
D) Check XML for validity
2. Given the following declarations, which code is likely to perform best and correctly initialize structure 3?
DCL 1 S UNALIGNED, 2 A CHAR(3), 2 B BIN FIXED(31), 2 C DEC FIXED(5); DCL 1 T UNALIGNED
LIKE S; T = ";
A) CALL PLIMOVE(ADDR(S),ADDR(T),STG(S));
B) S = ";
C) S = T,BY NAME;
D) CALL PLIFILL(ADDR(S),'',STG(S));
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) 20
B) 19
C) 24
D) 16
4. The following coding standards are enforced at a programming shop:
* All procedures must include a comment describing its function
* All automatic variables must be explicitly initialized when declared * No nested IF statements (implement
as SELECT)
Considering the following code, how many coding standard violations exist?
CALL P1(1);
/* ------- proc p1------- */
P1: PROC(l);
DCL I BIN FIXED(31);
DCL (J,K) BIN FIXED(31) INIT(0);
IF I = 1
THEN IF J = 2
THEN K = 3;
ELSE K = 4;
ELSE K = 5;
END;
A) 1
B) 3
C) 4
D) 2
5. What happens after the following statements?
DCLI,J CHAR(5) INIT('54321');
I = J;
PUT LIST(l);
A) SIZE condition will be raised.
B) CONVERSION condition will be raised.
C) 54321 will be printed.
D) 5.4321E+04 will be printed.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: A |
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