IBM IBM Certified Application Developer C6030-042 Questions & Answers

• Question 121:

  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 ^= 0) and (RC ^= 4) THEN PUT SKIP LIST(`ERROR IN B');ELSE IF RC> 8 THEN PUT SKIP LIST ('UNKNOWN VALUE FROM B);

  B. SELECT (RC);WHEN (0, 4);OTHERWISEPUT SKIP LIST('UNKNOWN VALUE FROM B');END;

  C. IF (RC >4) THEN PUT SKIP LIST('ERROR IN B');ELSE PUT SKIP LIST('UNKNOWN VALUE FROM B');

  D. SELECT (RC); WHEN (0,4); WHEN (8) PUT SKIP LIST (`ERROR IN B');OTHERWISE PUT SKIP LIST ('UNKNOWN VALUE FROM B');END;

  Correct Answer: D

• Question 122:

  What could be used when a structure is passed to a subroutine to verify that the area the structure occupies in storage has not been overwritten?

  A. Structure is passed as a pointer.

  B. Structure has eyecatchers at start and at end.

  C. Structure has a length field at start.

  D. Structure is passed as an aggregate.

  Correct Answer: B

• Question 123:

  In the following example what value will be printed to SYSPRINT, if any, from the PUT LIST in PGM_A?

  PGM_A PROC;

  DCL INPARM CHAR (10) INIT('FIRST CALL);

  DCL P_OUT PTR;

  DCL OUTPARM CHAR(10) BASED (P_OUT);

  DCL PGM_B ENTRY(CHAR(10),PTR) EXTERNAL:

  CALL P0MB (INPARM,P OUT);

  IF OUTPARM = `RESULT `THEN

  DO;

  INPARM = ";

  CALL PGM_B (INPARM,P_OUT);

  END;

  PUT LIST(OUTPARM);

  END;

  PGM_B: PROC(INPARMP_OUT);

  DCL INPARM CHAR (10);

  DCL P_OUT PTR;

  DCL OUTPARM CHAR (10) INIT(");

  P_OUT = ADDR(OUTPARM);

  IF INPARM =`FIRST CALL THEN

  OUTPARM = `RESULT `;

  ELSE

  OUTPARM = `NO RESULT';

  END;

  A. Blanks

  B. `NO RESULT'

  C. Unpredictable

  D. `RESULT'

  Correct Answer: C

• Question 124:

  The lead developer is presenting sample code. One of the team members identifies an error in the code. Which of the following is the most appropriate response for the lead developer to make?

  A. Apologize for the error and continue the presentation.

  B. Thank the person for pointing out the error.

  C. Suggest that this error be discussed in the next meeting.

  D. Declare the point irrelevant because this is sample code.

  Correct Answer: B

• Question 125:

  Given the following code:

  DCL INDATA FILE RECORD INPUT;

  DCL INSTRUC CHAR(100);

  DCL EOF BIT(1) INIT('0'B);

  ON ENDFILE(INDATA) EOF = `1'B;

  OPEN FILE(INDATA);

  READ FILE(INDATA) INTO(INSTRUC);

  DO WHILE (^EOF);

  CALL SR_PROCESS;

  READ FILE(INDATA) INTO(INSTRUC);

  END;

  CLOSE FILE(INDATA);

  If the database (input file) changes from OS-PS to DB2 view and the necessary syntax has been changed

  accordingly, which of the following DB2-related steps is NOT additionally required to guarantee the same

  level of stability and functionality?

  A. Check the SQLCODE after each EXEC SQL FETCH statement.

  B. Check the SQLCODE after each EXEC SQL OPEN / CLOSE statement.

  C. Set the EOF bit to `1'B, if SQLCODE = 100 (not found).

  D. Check the CURRENT SQLID.

  Correct Answer: D

• Question 126:

  Given the following declarations, which code is likely to perform best and correctly initialize structure 3?

  DCL 1 S UNALIGNED, 2 A CHAR(3), 2 B BIN FIXED(31), 2 C DEC FIXED(5); DCL 1 T UNALIGNED LIKE S; T = ";

  A. S = ";

  B. S = T,BY NAME;

  C. CALL PLIFILL(ADDR(S),'`,STG(S));

  D. CALL PLIMOVE(ADDR(S),ADDR(T),STG(S));

  Correct Answer: D

• Question 127:

  Given the following declarations, a list of 100 elements must be created so that the element created last

  can be accessed as the first element of the list. A new element is always inserted in front of the element

  created before. The variable NEXT in the last element should contain the value NULL. Which of the

  following pieces of code implements this?

  DCL 1 NODE BASED (ANCHOR).

  2 NEXT POINTER,

  2 DATA FIXED BIN (31);

  DCL ANCHOR POINTER;

  DCL P POINTER INIT (NULL());

  DCL I FIXED BIN(31);

  A. DO I = 1 TO 100;ALLOCATE NODE;NODE.DATA = I;NODE.NEXT = P;P = ANCHOR;END;

  B. DO I = 1 TO 100;P = ANCHOR;ALLOCATE NODE;NOTE.DATA = I;NODE.NEXT = P;END;

  C. I = 1 TO 100;ALLOCATE NODE;NODE.DATA = I;NODE.NEXT = P;ANCHOR = P;END;

  D. DO I = 1 TO 100;NODE.DATA = I;NODE.NEXT = P;ALLOCATE NODE;P = ANCHOR;END;

  Correct Answer: A

• Question 128:

  In which of the following examples will a dummy argument be passed?

  A. DCLA EXT ENTRY;DCL (X,Y) FIXED BIN;CALL A(X,Y);

  B. DCL A EXT ENTRY (FIXED, BINARY);DCL (X,Y) FIXED BIN;CALL A(X,Y);

  C. DCL A EXT ENTRY (FIXED BINARY);DCL (X,Y) FIXED BIN;CALL A(X,Y);

  D. PGM: PROC OPTIONS(MAIN);DCL (X,Y) FIXED BIN;CALL C (X,Y);

  E. PROC (A,B);DCL (A,B) BIN FIXED;END C;END PGM;

  Correct Answer: B

• Question 129:

  Which of the following will definitely NOT cause an unresolved external entry?

  A. Missing library at link time

  B. The main procedure name matching the binder or load module `name'

  C. A mismatch in names between the CALL and the actual procedure

  D. An incorrect DECLARE for the external entry

  Correct Answer: B

• Question 130:

  Which of the following best describes an atomic transaction?

  A. The database modifications must follow an `all or nothing' rule

  B. Only valid data will be written to database

  C. If one part of the transaction fails, the remainder may still be processed

  D. Referential Integrity is maintained in the database

  Correct Answer: A