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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Program A calls program B with PC as a parameter defined BIN FIXED (31 .0). Program B sets PC as
follows:
0 OK
4 WARNING
8 ERROR
Which of the following is the most appropriate statement for testing the PC variable?

A) IF (RC >4) THEN PUT SKIP LIST('ERROR IN B');
ELSE PUT SKIP LIST('UNKNOWN VALUE FROM B');
B) IF (RC ^= 0) & (RC ^= 4) THEN PUT SKIP LIST('ERROR IN B');
ELSE IF RC> 8 THEN PUT SKIP LIST('UNKNOWN VALUE FROM B);
C) SELECT (RC); WHEN (0,4); WHEN (8) PUT SKIP LIST ('ERROR IN B');
OTHERWISE PUT SKIP LIST('UNKNOWN VALUE FROM B');
END;
D) SELECT (RC);
WHEN (0, 4);
OTHERWISE
PUT SKIP LIST('UNKNOWN VALUE FROM B');
END;

2. In a multithreading environment, when can a deadlock occur between two threads, if at all?

A) When both access the same memory area
B) When they are operating synchronously
C) It can neveroccur.
D) When they have both locked a resource that the other one requires

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

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

4. Which of the following is the most appropriate reason to explicitly use COMMIT or ROLLBACK?

A) The program abends.
B) A batch program performs mass deletions where all deleted rows are independent from each other.
C) An online program updates DB2 and IMS objects.
D) The program calls unknown subroutines.

5. A software package utilizes several licensed third party software components and will be sold to multiple
customers who will also need runtime licenses. What information is LEAST appropriate to provide in a
technical operations guide?

A) The contact information of the third party vendors
B) The required release level or the third party software components
C) The price or the third party software components
D) The URL for the third party vendor

Solutions: