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IBM C9050-042 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Program Structure and Control | - Control Flow
|
| Topic 2: IBM Enterprise PL/I Features | - Compiler and Runtime Features
|
| Topic 3: Data Processing | - Arrays and Structures
|
| Topic 4: File and I/O Processing | - Input and Output Formatting
|
| Topic 5: PL/I Language Fundamentals | - Data Types and Declarations
|
IBM Developing with IBM Enterprise PL/I Sample Questions:
1. A file containing FIXED BINARY fields that is written by a PL/I program on Intel Architecture is to be read
by PL/I programs on Intel Architecture and on the mainframe. What must be changed in the program
which reads the file on Intel architecture, if anything, for it to work correctly when it run s on the
mainframe?
A) The program must declare the FIXED BINARY fields with the attribute NATIVE.
B) The program must declare the FIXED BINARY fields with the attribute BIGEND IAN.
C) The program must declare the FIXED BINARY fields with the attribute LITTLEENDIAN.
D) Nothing needs to be changed.
2. Lt there is a direct read access to a data object with a unique key (e.g., DB2-SELECT, IMS-GU, ...),
which of the following return codes is possible?
A) OK, not found, database not available
B) OK, duplicate key, database not available
C) OK, end file, not found
D) OK, end file, database not available
3. A given PL/I program has a big nesting depth. Which of the following measures will help to reduce the
nesting depth in most cases?
A) Avoiding OTHER clauses
B) Avoiding ELSE clauses
C) Using DO-WHILE as the only loop technique
D) Using SELECT constructs instead of If-THEN-ELSE
4. Which of the following characters may NOT be translated correctly when moving between code pages,
character sets and platforms?
A) +
B) A
C) |e
D) 9
5. Given the following example, what will happen with the PUT SKIP DATA statement after the DO-loop?
PGM_A PROC OPTIONS(MAIN); DCL I FIXED SIN(31);
DCL MON CHAR (10);
DCL DAY(12) CHAP (2) INIT ('31','28','31', '30','31','30' 31','31','30' '31','30','31');
DO I = 1 TO 12;
MON = MON_FUNC(I);
PUT DATA (MON,DAY(I));
END;
PUT SKIP DATA (MON_ARR);
MON_FUNC: PROC(INP) RETURNS(CHAP(10));
DCL INP FIXED BIN (31);
DCL MON_APP(12) CHAR (10) INIT ('JANUARY ','FEBRUARY ','MARCH ', 'APRIL ','MAY
"JUNE 'JULY ''AUGUST ''SEPTEMBER','OCTOBER ','NOVEMBER ','DECEMBER ');
RETURN(MON_ARR(INP));
END;
END;
A) The compiler will issue a message for the statement and results are unpredictable.
B) Twelve zeroes will be printed.
C) The compiler will issue no messages but the program will tail trying to execute the statement.
D) A table of the months of theyearwill be printed.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: A |



