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IBM Developing with IBM Enterprise PL/I Sample Questions:

1. Given the following pseudocode example, at which label should an unconditional COMMIT be placed
assuming there is a one-to-many relationship between FIL01 and FIL02 and FlL01 contains several
thousand records?
Read record from file FIL01
1 . DO while there are records in FIL01 IF record in FIL01 specifies update THEN DO for all records
matching in FIL02 Update record in FIL02 with information from FIL01 end DO
2 . end IF
3 . Read next record in FIL01
4 . end DO

A) 4
B) 3
C) 1
D) 2

2. Which of the following is the most appropriate way of avoiding a recursive deadlock?

A) Aborting the Transaction
B) Setting a time limit on the runtime of the Transaction
C) Partitioning the relevant Database
D) Changing the program

3. What happens after executing the following code?
DCL OUTFILE FILE RECORD OUTPUT;
DCLP PTR;
DCL I BIN FIXED(31);
DCL A BIN FIXED(31) BASED(P);
DO I = 1 TO 10;
LOCATE A FILE(OUTFILE) SET(P);
A = I;
END;
CLOSE FILE(OUTFILE);

A) 10 records will be written with first record value undefined.
B) 10 records will be written with value 1 to 10.
C) 9 records will be written with value 2 to 10.
D) 9 records will be written with value 1 to 9.

4. Given the following example, what will happen with the PUT SKIP DATA statement after the DO-loop?
PGM_A PROC OPTIONS(MAIN); DCL I FIXED SIN(31);
DCL MON CHAR (10);
DCL DAY(12) CHAP (2) INIT ('31','28','31', '30','31','30' 31','31','30' '31','30','31');
DO I = 1 TO 12;
MON = MON_FUNC(I);
PUT DATA (MON,DAY(I));
END;
PUT SKIP DATA (MON_ARR);
MON_FUNC: PROC(INP) RETURNS(CHAP(10));
DCL INP FIXED BIN (31);
DCL MON_APP(12) CHAR (10) INIT ('JANUARY ','FEBRUARY ','MARCH ', 'APRIL ','MAY
"JUNE 'JULY ''AUGUST ''SEPTEMBER','OCTOBER ','NOVEMBER ','DECEMBER ');
RETURN(MON_ARR(INP));
END;
END;

A) A table of the months of theyearwill be printed.
B) Twelve zeroes will be printed.
C) The compiler will issue a message for the statement and results are unpredictable.
D) The compiler will issue no messages but the program will tail trying to execute the statement.

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

Solutions: