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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Performance and Optimization | 15% | - I/O and processing performance - Memory and storage efficiency - Compiler options and runtime tuning |
| Topic 2: File Processing and Database Connectivity | 20% | - Sequential and VSAM file processing - Database connectivity and SQL integration - Data manipulation and transaction control |
| Topic 3: Debugging, Testing and Maintenance | 15% | - Unit testing and code validation - Debugging techniques and tools - Compilation and listing analysis |
| Topic 4: Advanced PL/I Concepts | 25% | - Object-oriented features in PL/I - Error and exception handling - Structures and records - Pointers and dynamic memory allocation - Strings and arrays |
| Topic 5: PL/I Language Fundamentals | 25% | - Procedures and functions - Variables, constants, and expressions - Control structures - I/O operations and file handling - Syntax and data types |
1. Which of the following is LEAST likely to be performed by a batch program?
A) User interaction
B) Sorting
C) Production of pay checks
D) Sequential file processing
2. In which of the following groups of compiler options could all the options specified cause the compiler to
generate code which requires more time at execution?
A) APCH(5),BIFPREC(31),NOTESTMTUNE(5),NOSERVICE
B) OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)
C) OPTIMIZE(2),DEFAULT(REORDER,NOLAXDCL,NOLAXCTL),STORAGE,MMTEMP(1000)
D) ATTRIBUTES(FULL),XREF(FULL),DEFAULT(EVENDEC,DUMMY(UNALIGNED)),OFFSET
3. The following structure is used when writing a file on Intel architecture which is sent to the mainframe:
DCL 1 A,
2 B FIXED BIN(31),
2 C CHAR (100) VAR,
2 D FIXED BIN(31);
How must this structure be declared on the mainframe if the file is to be read correctly?
A) DCL1 A,
2 B FIXED BIN(31) BIGENDIAN, 2 C CHAR (100) VAR BIGENDIAN, 2 D CHAR (10);
B) D CL 1 A,
2 B FIXED BIN(31) BIGENDIAN,
2 C CHAR (100) VAR,
2 D CHAR (10);
C) DCL1 A,
2 B FIXED BIN(31) LITTLEENDIAN,
2 C CHAR (100) VAR LITTLEENDIAN,
2 D CHAR (10);
D) DCL1 A,
2 B FIXED BIN(31) LITTLEENDIAN,
2 C CHAR (100) VAR,
2 D CHAR (10);
4. In the following example how many lines, if any, will be printed?
GRAPH: PROC OPTIONS(MAIN);
DCL I FIXED BIN(31);
DCL POINTS FIXED BIN(31);
CALL INIT_POINTS;
DO I = 1 TO 100;
GET LIST(POINTS);
CALL PLOT_NEXT(POINTS);
END;
INIT_POINTS: PROC;
DCL I FIXED BIN(31);
DCL POINTS(1000) FIXED BIN (31);
DCL BAR CHAR (100) INIT((100)'*') STATIC;
DO I 1 TO 10;
POINTS(I) = I;
PUT SKIP LIST (POINTS(I),SUBSTR(BAR,1,I));
END;
RETURN;
PLOT_NEXT: ENTRY(I);
POINTS(I) = I;
PUT SKIP LIST(POINTS(I),SUBSTR(BAR,1 I));
END;
END GRAPH;
A) 110
B) 10
C) 100
D) It is unpredictable as the program will fail.
5. Given the following code, what will happen?
DCL(K, L) FIXED DEC (1);
K= 1;
L = 2;
PUT SKIP LIST (12+K/L);
A) The resulting value is 6.5.
B) The output is 12.4999999999999.
C) The program ends abnormally at runtime.
D) The output is 12.5.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: D | Question # 5 Answer: C |
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