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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

Question 1

Assuming there is no information about the duration or each table update and the programs are running in
a multitasking environment, which of the following options will best minimize the chance for deadlocks?

A. Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table
B, Table C and Table A in the specified order.
B. Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table
C, Table B and Table A in the specified order.
C. Programs update table A, Table B and Table C in random order.
D. All programs update Table A, Table B and Table C in the same order.

Question 2

Which of the following is the most appropriate way of avoiding a recursive deadlock?

A. Partitioning the relevant Database
B. Aborting the Transaction
C. Changing the program
D. Setting a time limit on the runtime of the Transaction

Question 3

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

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

Question 4

Given the following code, which call will pass a dummy argument?
PROG: PROC OPTIONS(MAIN);
DCL SUM01 DEC FIXED(5,0) INIT (7);
DCL SUM02 DEC FIXED(9,0) INIT (999);
CALL SUBA(SUM01,
SUM02);
CALL SUSB(SUM01,
SUM02);
CALL SUBC(SUM01,
SUM02);
CALL SUBD(SUM01,
SUM02);
SUBA PROC( PRM1,
PRM2);
DCL PRM1 DEC FIXED (5,0) BYVALUE,
PRM2 DEC FIXED (9,0);
END SUBA;
SUBB:PROC( PRM1,
PRM2);
DCL PRM1 DEC FIXED (5,0),
PRM2 DEC FIXED (9,0);
END SUBD;
SUBC: PROC( PRM 1,
PRM2);
DCL PRM1 BIN FIXED (15,0),
PRM2 DEC FIXED (9,0);
END SUBC;
SUBD:PROC( PRM 1,
PRM2);
DCL PRM1 DEC FIXED(5,0) BYADDR,
PRM2 DEC FIXED (9,0) SYADDP;
END SUBD;
END PROG;

A. CaII to SUBB
B. CaII to SUBC
C. CaII to SUBD
D. Call to SUBA

Question 5

Which of the following would a non-technical manager be LEAST interested in regarding migration to
Enterprise PL/I?

A. Whether training programs would be needed
B. Amount of computer resources needed for the conversion
C. How many programs would be affected and the effort required
D. Which Enterprise compiler options should be specified

Solutions: