IBM IBM Certified Application Developer C6030-042 Questions & Answers

• Question 31:

  A software package utilizes several licensed third party software components and will be sold to multiple customers who will also need runtime licenses. What information is LEAST appropriate to provide in a technical operations guide?

  A. The contact information of the third party vendors

  B. The price or the third party software components

  C. The required release level or the third party software components

  D. The URL for the third party vendor

  Correct Answer: B

• Question 32:

  In a multithreading environment, when can a deadlock occur between two threads, if at all?

  A. When both access the same memory area

  B. When they are operating synchronously

  C. When they have both locked a resource that the other one requires

  D. It can neveroccur.

  Correct Answer: C

• Question 33:

  Which of the following is the most appropriate reason to explicitly use COMMIT or ROLLBACK?

  A. A batch program performs mass deletions where all deleted rows are independent from each other.

  B. An online program updates DB2 and IMS objects.

  C. The program abends.

  D. The program calls unknown subroutines.

  Correct Answer: A

• Question 34:

  An online, non-conversational main program (for CICS or IMS) contains all of the logic for a one- screen (MAP or FORMAT) application. Which of the following will NOT be required?

  A. Code that opens all needed databases

  B. Code which does all necessary initializations

  C. Code which determines the situation to be applied for the current program execution

  D. Code for each situation

  Correct Answer: A

• Question 35:

  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;

  Correct Answer: A

• Question 36:

  Which of the following statements is best for avoiding synchronously updating a resource?

  A. Have only program A update the resource without using ENQ.

  B. Have all programs use ENQ and WAIT for a specific resource.

  C. Lock the entire resource at start of program and release at end of program.

  D. Have several programs update the resource without using ENQ.

  Correct Answer: B

• Question 37:

  A lead developer reviewing code from one of the programmers found the following code. What should the programmer be told about BY NAME assignments?

  DCLl STR1, 3FB15 FIXED BIN (15), 3 CH10 CHAR (10), 3 NAME CHAR (25). 3 ADDR CHAR (30), 3 FB31 FIXED BIN (31); DCL 1 STR2, 3 FB31 FIXED BIN (31), 3 FB31B FIXED BIN (31), 3 NAME CHAR (20), 3 ADDR CHAR (30), 3 CH20 CHAR (20); STR2 = STR1, BY NAME;

  A. There is nothing wrong with using BY NAME assignments in this situation.

  B. They are incorrect and should be replaced by individual assignments.

  C. They can have inadvertent side effects and the code should be analwed.

  D. They do not work in this case and the code should be replaced by individual assignments.

  Correct Answer: C

• Question 38:

  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 the code will be revised and provided to the team for review.

  B. Thank the programmer, asking for details about the error and discussing the solution with him.

  C. Thank the programmer, saying the program will be checked but asking him to check that the error is not in his program.

  D. Thank the programmer, indicating there is not time to correct the code and requesting that he do so.

  Correct Answer: B

• Question 39:

  Given the following declarations, which is the WORST way of setting D from 5? DCL 1 S,

  2 A(100) CHAR(1),

  2 B(100) CHAR(2),

  2 C(100) CHAR(3);

  S = ";

  DCL D CHAR(600);

  DCLI BIN FIXED(31);

  A. D = STRING(S);

  B. CALL PLIOVER(ADDR(D)ADDR(S),600);

  C. DO I = 1 TO 100;SUBSTR(D,I,1) = S.A(l);SUBSTR(D,1 01 + ((I-1) *2),2) =

  D. B(I);SUBSTR(D,301 + ((I-1) *3),3) = S.C(I);END;

  E. D = STRING(A) !! STRING(S) !! STRING(C);

  Correct Answer: C

• Question 40:

  Given the following code, which condition would be raised first (if ENABLED)?

  DCL A(50000) CHAR (8);

  DCL I BIN FIXED (31);

  DCL J BIN FIXED (15);

  DCI = 1 TO 100_000;

  J = I;

  A(J) = I;

  END;

  A. SIZE

  B. FIXEDOVERFLOW

  C. SUBSCRIPTRANGE

  D. CONVERSION

  Correct Answer: A