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IBM Developing with IBM Enterprise PL/I Sample Questions:
1. Which of the following PL/I features is NOT new with Enterprise PL/I?
A) Writing numeric constants with the underscore sign as a separator.
B) UNIONs or CELLs to assign identical storage to different variables.
C) Using hexadecimal constants.
D) VALUE attribute for named constants.
2. 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) All programs update Table A, Table B and Table C in the same order.
C) Programs update table A, Table B and Table C in random order.
D) 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.
3. What is a program specification document?
A) A description of what the program does and how it can be used
B) The history of changes of the program and how it was used
C) A description of how the program does its work
D) The pseudocode of the program
4. 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 output is 12.5.
B) The program ends abnormally at runtime.
C) The output is 12.4999999999999.
D) The resulting value is 6.5.
5. 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) The declaration of A should be changed because the current declaration contains padding bytes.
B) The code is good as written.
C) A is incorrectly initialized and the code must be changed.
D) Discuss with the programmer how many elements of the arrays need to be initialized.
Solutions:
Question # 1 Answer: C | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: B | Question # 5 Answer: D |