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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Which of the following techniques, if any, can be used to parallelize a PL/I program?

A) Parallelization is not possible in PL/I program.
B) Attach threads to pieces or work that are independent from othersB.Attach a thread to every subroutine
in the program.
C) Attach a thread to every external entry in the program.

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

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

3. Which of the following steps is NOT required to use the IBM Debug Tool on a PL/I program?

A) Plan points where the program should stop during testing
B) Have the source code available
C) Write an Language Environment user condition handler
D) Compile with TEST option

4. A programmer has submitted the following declaration for review. What feedback should be provided to
the programmer?
DCL 1 A,
2 B DIM (1000) FIXED BIN (31) INIT (0),
2 C DIM (1000) FIXED BIN(15) INIT (0);

A) Discuss with the programmer how many elements of the arrays need to be initialized.
B) The declaration of A should be changed because the current declaration contains padding bytes.
C) The code is good as written.
D) A is incorrectly initialized and the code must be changed.

5. 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
C, Table B and Table A in the specified order.
B) Programs update table A, Table B and Table C in random order.
C) 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.
D) All programs update Table A, Table B and Table C in the same order.

Solutions: