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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. A member of the team points out to the lead developer that there appears to be an error in the program
the lead developer has created. Which of the following is the most appropriate response from the lead
developer?

A) Thank the programmer, indicating there is not time to correct the code and requesting that he do so.
B) Thank the programmer, indicating the code will be revised and provided to the team for review.
C) Thank the programmer, asking for details about the error and discussing the solution with him.
D) Thank the programmer, saying the program will be checked but asking him to check that the error is
not in his program.

2. Which of the following characters may NOT be translated correctly when moving between code pages,
character sets and platforms?

A) |e
B) 9
C) A
D) +

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 not all records with '2' in the first byte will be written to the output dataset.
C) The code does not fulfill the requirement because the program will loop infinitely.
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 techniques, if any, can be used to parallelize a PL/I program?

A) Attach threads to pieces or work that are independent from othersB.Attach a thread to every subroutine
in the program.
B) Parallelization is not possible in PL/I program.
C) Attach a thread to every external entry in the program.

5. Which of the following declarations uses the LEAST memory?
DCL 1 S1 ALIGNED,
2 A CHAR(3),
2 B BIN FIXED(31),
2 C DEC FIXED(5),
2 D BIN FIXED(15);
DCL 1 S2 UNALIGNED,
2 A CHAR(3),
2 B BIN FIXED(31),
2 C DEC FIXED(5),
2 D BIN FIXED(15);
DCL 1 S3 ALIGNED,
2 B BIN FIXED(31),
2 A CHAR(3),
2 D BIN FIXED(15),
2 C DEC FIXED(5);
DCL 1 S4 ALIGNED,
2 D BIN FIXED(15),
2 A CHAR(3),
2 B BIN FIXED(31),
2 C DEC FIXED(5);

A) S2
B) S1
C) S4
D) S3

Solutions: