IBM C6030-042 Online Practice Questions and Exam Preparation

IBM C6030-042 Online Questions & Answers

• Question 11:

  The lead developer on a project has just learned that Pat, a highly skilled programmer on the team, has been reassigned. The lead developer is familiar with Pat's work and is concerned because no one on the team has the necessary skills to pick up the work immediately. A new employee with the required skills is joining the team next week, but the timeline for a mission critical milestone has been moved up to the end of this week. Which of the following is the most appropriate action for the lead developer to take to ensure that the critical milestone is met?

  A. Direct the team to cover all of Pat's work until the new employee arrives.
  B. Explain to the team why this change in schedule is important to the customer.
  C. Personally cover the work until the new employee arrives.
  D. Explore with the team whether they will be able to meet the new deadline.
  C. Personally cover the work until the new employee arrives.

• Question 12:

  Given the following declaration, W has to be assigned to C. How can a CONVERSION condition be avoided?

  DCL C CHAR(1);

  DCL W WIDECHAR(1);

  A. IF RANK(W)> 127 THENPUT (`Widechar is not a valid char!');ELSEC = W;
  B. IFW ^= CHAR(W)THENPUT (`Widechar not is a valid char!');ELSEC = W;
  C. IF WCHARVAL(W) > 128 THENPUT (`Widechar is not a valid char!');ELSEC = W;
  D. IFW >128THENPUT (`Widechar is not a valid char!');ELSEC = W;
  A. IF RANK(W)> 127 THENPUT (`Widechar is not a valid char!');ELSEC = W;

• Question 13:

  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. S1
  B. S2
  C. S3
  D. S4
  B. S2

• Question 14:

  What will be printed after the following statements?

  DCL B BIT(5); B = 1; PUT(B);

  A. `00001'B
  B. `00010'B
  C. `11111'B
  D. `10000'B
  B. `00010'B

• Question 15:

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

• Question 16:

  Given the following code, which call will pass a dummy argument?

  PROG: PROC OPTIONS(MAIN);

  DCL SUM01 DEC FIXED(5,0) INIT (7);

  DCL SUM02 DEC FIXED(9,0) INIT (999);

  CALL SUBA(SUM01,

  SUM02);

  CALL SUSB(SUM01,

  SUM02);

  CALL SUBC(SUM01,

  SUM02);

  CALL SUBD(SUM01,

  SUM02);

  SUBA PROC( PRM1,

  PRM2);

  DCL PRM1 DEC FIXED (5,0) BYVALUE,

  PRM2 DEC FIXED (9,0);

  END SUBA;

  SUBB: PROC( PRM1,

  PRM2);

  DCL PRM1 DEC FIXED (5,0),

  PRM2 DEC FIXED (9,0);

  END SUBD;

  SUBC: PROC( PRM 1,

  PRM2);

  DCL PRM1 BIN FIXED (15,0),

  PRM2 DEC FIXED (9,0);

  END SUBC;

  SUBD: PROC( PRM 1,

  PRM2);

  DCL PRM1 DEC FIXED(5,0) BYADDR,

  PRM2 DEC FIXED (9,0) SYADDP;

  END SUBD;

  END PROG;

  A. Call to SUBA
  B. CaII to SUBB
  C. CaII to SUBC
  D. CaII to SUBD
  C. CaII to SUBC

• Question 17:

  Assuming there is no information about the duration or each table update and the programs are running in a multitasking environment, which of the following options will best minimize the chance for deadlocks?

  A. Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table B, Table C and Table A in the specified order.
  B. Program A updates Table A, Table B and Table C in the specified order, and Program B updates Table C, Table B and Table A in the specified order.
  C. All programs update Table A, Table B and Table C in the same order.
  D. Programs update table A, Table B and Table C in random order.
  C. All programs update Table A, Table B and Table C in the same order.

• Question 18:

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

• Question 19:

  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 does not fulfill the requirement because the program will loop infinitely. A. The code does not fulfill the requirement because the program will loop infinitely.
  B. 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.C. 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.
  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.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 fulfills the requirement.D. The code fulfills the requirement.
  A. The code does not fulfill the requirement because the program will loop infinitely. A. The code does not fulfill the requirement because the program will loop infinitely.

• Question 20:

  Requirement:

  If the value of the numeric variable I is 1 it needs to be changed to 2 and vice versa. In all other cases it must remain unchanged. Which of the following solutions meets the requirement and does not require essential structural modifications

  when the requirement is changed to the following: If the value of the numeric variable I is 512 it needs to be changed to 731 and if the value is 814 it needs to be changed to 5. In all other cases it must be set to 111.

  A. lF I = 1 ! 1 = 2THEN I = 3 - I;
  B. DCL ONETWO(2) BIN FIXED(15) INIT(2,1);IF I = 1! I = 2THEN I = ONETWO(I);
  C. SELECT (I);WHEN(1) I = 2;WHEN(2) I = 1;OTHER;END;
  D. IF I = 1 THEN I = 2;IF I = 2 THEN I = 1;
  C. SELECT (I);WHEN(1) I = 2;WHEN(2) I = 1;OTHER;END;