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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. It becomes apparent that the deadline to implement and test all the functions required for an application is
at risk. Which of the following is the best course of action?

A) Inform management that more people are required.
B) Inform management that the deadline has to be changed.
C) Inform management that some functions will not have been tested when the system is implemented.
D) Inform the team and the sponsor about the problem and discuss possible solutions.

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

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

3. A dummy argument is NOT created when a routine is called in which of the following situations?

A) Using SUBSTR as one of the arguments
B) With the attributes(s) of the arguments and parameters are not the same
C) Where the attributes(s) of the arguments and parameters are the same
D) With a constant as parameter

4. Requirement:
All the characters of the CHAR(3) variable X must be tested to be numeric. Which of the following
solutions meets the requirement and does not require essential structural modifications when the
requirement is changed to the following: The first character of the CHAR(3) variable X must be tested to
be uppercase alphabetic, while the two other characters must be tested to be numeric.

A) DCL Y PIC'999';
DCL SWITCH BIT(1) INIT('1'B);
ON CONVERSION BEGIN;
SWITCH =
ONSOURCE = '000';
END;
Y = X;
IF SWITCH
THEN ... ; /*NUMERIC*/
B) DCL NUM CHAR(10) VALUE('0l 23456789');
IF VERIFY(X,NUM) = 0
THEN ... /*NUMERIC*/
C) DCL ALPHA CHAR(26) VALUE('ABCDEFGHIJKLMNOPQRSTUVWXYZ');
DCL NUM CHAR(10) VALUE('0123456789');
IF TRANSLATE(X,(26)'A'!I(10)'9'ALPHA!!NUM) = '999'
THEN ... ; /*NUMERIC*/
D) IFX >= '000' & X <= '999'
THEN ... /*NUMERIC*/

5. Which of the following is generally NOT an area of concern when calling a program written in another
language from PL/I?

A) Condition handling
B) Storage management
C) Acceptable calling conventions
D) Data mapping

Solutions: