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IBM C9050-042 Exam Syllabus Topics:

IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Which PL/I builtin function can be used to get the system return code from a called program (including
non-PL/I languages)?

A) PLIRETC
B) PLIRETV
C) PLIREST
D) PLISTRA

2. Requirement Copy a dataset of record length 100 to another dataset.
If the following code does not fulfill the requirement above, which is the most likely reason?
DCL DDIN FILE RECORD INPUT;
DCL DDOUT FILE RECORD OUTPUT;
DCL INSTRUC CHAR(100);
DCL EOF_IN BIT(1) INIT('0'B);
ON ENDFILE(DDIN) EOF_IN = '1'B;
READ FILE(DDIN) INTO(INSTRUC);
DO WHlLE(^EOF_IN);
WRITE FILE(DDOUT) FROM(INSTRUC);
READ FILE(DDIN) INTO(INSTRUC);
WRITE FILE(DDOUT) FROM(INSTRUC);
END;

A) The code fulfills the requirement.
B) The code does not fulfill the requirement because the OPEN statements are missing.
C) The code does not fulfill the requirement because too many records will be written to the output dataset,
except when the input dataset is empty.
D) The code does not fulfill the requirement because the input structure is the same as the output
structure.

3. Prerequisite:
A sorted input dataset with record length 100 contains at least one record for each of the values '1', '2', '3'
in the first byte. The applied sort criteria is 1,100,ch,a.
Requirements:
1 .) All records with '1' in the first byte must be ignored.
2 .) All records with '2' in the first byte must be written to the output dataset.
3 .) If there is a '3' in the first byte, the read iteration must be left.
4 .) The program must not abend or loop infinitely.
If the code below does not fulfill the specifications provided above, which of the following is the most likely
reason?
DCL DDIN FILE RECORD INPUT;
DCL DDOUT FILE RECORD OUTPUT;
DCL 1 INSTRUC,
3 A CHAR(1),
3 * CHAR(99);
DCL EOF_IN BIT(1) INIT('0'B);
DCL (Z1,Z2,Z3,ZO) BIN FIXED(31) INIT(0);
ON ENDFILE(DDIN) EOF_IN = '1'B;
READ FILE(DDIN) INTO (INSTRUC);
LOOP: DO WHILE (^EOF_IN);
SELECT(INSTRUC.A);
WHEN('1') DO;
Z1 +-= Z1;
ITERATE LOOP;
END;
WHEN('3') DO;
Z3 = Z3+1;
LEAVE LOOP;
END;
WHEN('2') DO;
Z2 = Z2+1;
WRITE FILE(DDOUT) FROM(INSTRUC);
END;
OTHER DO;
ZO = ZO+1;
PUT SKIP LIST(INSTRUC.A);
END;
END;/*select*/
READ FILE(DDIN) INTO(INSTRUC);
END ;/*loop*/

A) The code fulfills the requirement.
B) The code does not fulfill the requirement because the program will loop infinitely.
C) The code does not fulfill the requirement because not all records with '2' in the first byte will be written to the output dataset.
D) The code does not fulfill the requirement because the last record with '2' in the first byte will be written twice to the output dataset.

4. Which of the following may be an advantage of the BEGIN OPTIONS (INLINE) statement?

A) The program uses less stack storage.
B) The program uses less heap storage.
C) The code runs faster because more variables will be optimized in the BEGINblock.
D) The program runs faster because all variables declared inside the BEGIN block are already allocated
when the block containing the BEGINblock is entered.

5. Which code should NOT be split out into separate subroutines?

A) Dead code in a program.
B) Redundant code in a program.
C) Code which must be available on different platforms.
D) Redundant code in a group otprograms.

Solutions: