000-042 Exam

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Exam : IBM 000-042
Title : Developing with IBM Enterprise PL/I


1. The XMLCHAR builtin function provides the ability to do which of the following?
A. Check XML for well-formedness
B. Check XML for validity
C. Create an XML buffer from a structure
D. Read an XML file into a structure
Answer: C

2. Which of the following is LEAST likely to be performed by an online application?
A. Checkpoint/restart logic
B. Transaction processing
C. End user interaction
D. Sorting
Answer: A

3. Requirement:
If the value of the numeric variable I is 1 it needs to be changed to 2 and vice versa. In all other cases it must remain unchanged.
Which of the following solutions meets the requirement and does not require essential structural modifications when the requirement is changed to the following:
If the value of the numeric variable I is 512 it needs to be changed to 731 and if the value is 814 it needs to be changed to 5. In all other cases it must be set to 111.
A. IF I = 1 ! I = 2
THEN I = 3 - I;
B. DCL ONETWO(2) BIN FIXED(15) INIT(2,1);
IF I = 1 ! I = 2
THEN I = ONETWO(I);
C. SELECT (I);
WHEN(1) I = 2;
WHEN(2) I = 1;
OTHER;
END;
D. IF I = 1 THEN I = 2;
IF I = 2 THEN I = 1;
Answer: C

4. Which of the following is a typical deadlock situation?
Situation 1:
Transaction A waiting for resource_2 and Transaction B waiting for resource_1 while resource_1 is held by Transaction C and resource_2 is held by Transaction B
Situation 2:
Transaction A waiting for resource_1 and Transaction B waiting for resource_2 while resource_1 is held by Transaction B and resource_2 is held by Transaction C
Situation 3:
Transaction A Waiting for resource_2, Transaction B waiting for resource_3, Transaction C waiting for resource_1, while resource_1, resource_2 and resource_3 are held by Transactions A, B and C respectively.
Situation 4:
Transaction B waiting for resource_1 and Transaction C waiting for resource_2 while resource_1 is held by Transaction C and resource_2 is held by Transaction A
A. Situation 1
B. Situation 2
C. Situation 3
D. Situation 4
Answer: C

5. Which of the following PL/I features is NOT new with Enterprise PL/I?
A. VALUE attribute for named constants.
B. UNIONs or CELLs to assign identical storage to different variables.
C. Writing numeric constants with the underscore sign as a separator.
D. Using hexadecimal constants.
Answer: D

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