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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

1. A PL/I program performance analwer can best help identify which of the following?

A) CPU hotspots and elapsed time percentages by procedure
B) Changes needed to database tables
C) Incorrect program logic
D) Adequate code coverage

2. Given the following code, what measure will NOT improve stability?
S1: PROC (X,Y,Z);
DCL X DEC FIXED (5);
DCL Y PlC '99999';
DCL Z DEC FIXED (5);
Z = X + Y;
END;

A) Check Z for valid packed data.
B) Check X for valid packed data.
C) Check Y for valid numeric data.
D) Check result overflow.

3. Which of the following structures will NOT contain padding bytes if the PL/I default for alignment is
applied?

A) DCL 1 A, 2 B FLOAT DEC (16), 2 F FLOAT DEC (16), 2 C FIXED DEC (5,2), 2 E FIXED BIN (31), 2 D
CHAR (3);
B) DCL 1 A, 2 B FLOAT DEC (16), 2 C FLOAT DEC (5,2), 2 D CHAR (3), 2 E FIXED BIN (31), 2 F FLOAT
DEC (16);
C) DCL 1 A, 2 B FLOAT DEC (16), 2 F FLOAT DEC (16), 2 E FIXED BIN (31), 2 C FIXED DEC (5,2), 2 D
CHAR (3);
D) DCL 1 A, 2 E FIXED BIN (31), 2 C FIXED DEC (5,2), 2 B FLOAT DEC (16), 2 F FLOAT DEC (16), 2 D
CHAR (3);

4. Which of the following best describes an atomic transaction?

A) The database modifications must follow an 'all or nothing' rule
B) Referential Integrity is maintained in the database
C) If one part of the transaction fails, the remainder may still be processed
D) Only valid data will be written to database

5. What happens after the following statements?
DCLI,J CHAR(5) INIT('54321');
I = J;
PUT LIST(l);

A) 5.4321E+04 will be printed.
B) SIZE condition will be raised.
C) CONVERSION condition will be raised.
D) 54321 will be printed.

Solutions: