IBM C6030-042 Online Practice Questions and Exam Preparation

IBM C6030-042 Online Questions & Answers

• Question 101:

  Which of the following is generally NOT an area of concern when calling a program written in another language from PL/I?

  A. Storage management
  B. Acceptable calling conventions
  C. Data mapping
  D. Condition handling
  A. Storage management

• Question 102:

  A programmer has submitted the following declaration for review. What feedback should be provided to the programmer?

  DCL 1 A,

  2 B DIM (1000) FIXED BIN (31) INIT (0),

  2 C DIM (1000) FIXED BIN (15) INIT (0);

  A. The code is good as written.
  B. A is incorrectly initialized and the code must be changed.
  C. Discuss with the programmer how many elements of the arrays need to be initialized.
  D. The declaration of A should be changed because the current declaration contains padding bytes.
  C. Discuss with the programmer how many elements of the arrays need to be initialized.

• Question 103:

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

• Question 104:

  Given the following code, which DECLARE should NOT be used for a reentrant program? DCL B BIN FIXED(31,0) INIT (4);

  A = B;

  A. DCL A BIN FIXED (31,0) INIT(0);
  B. DCL A BIN FIXED (31,0) INIT(0) STATIC;
  C. DCL A BIN FIXED (31,0) INIT(0) AUTOMATIC;
  D. DCL A BIN FIXED (31,0);
  B. DCL A BIN FIXED (31,0) INIT(0) STATIC;

• Question 105:

  When a program reads a variable record format dataset via LOCATE mode, what happens?

  A. READ pointer points to the length bytes in the buffer.
  B. READ pointer points to first data byte in the buffer.
  C. READ data is placed in specified area.
  D. The ENDFILE condition is never raised.
  B. READ pointer points to first data byte in the buffer.

• Question 106:

  The following coding standards are enforced at a programming shop:

  *

  All procedures must include a comment describing its function

  *

  All automatic variables must be explicitly initialized when declared * No nested IF statements (implement as SELECT) Considering the following code, how many coding standard violations exist?

  CALL P1(1); /* ------- proc p1------- */

  P1: PROC(l);

  DCL I BIN FIXED(31);

  DCL (J,K) BIN FIXED(31) INIT(0);

  IF I = 1

  THEN IF J = 2

  THEN K = 3;

  ELSE K = 4;

  ELSE K = 5;

  END;

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

• Question 107:

  A mainframe project is behind schedule and a project leader has only one copy of a PC-based PL/I compiler available for distribution to team members who are all eager to use it. Optimally, to whom should it be provided first?

  A. The person in the critical path
  B. The person who does the most PL/I development
  C. The person who makes the greatest demand
  D. The project leader and her manager
  A. The person in the critical path

• Question 108:

  A given PL/I program has a big nesting depth. Which of the following measures will help to reduce the nesting depth in most cases?

  A. Using SELECT constructs instead of If-THEN-ELSE
  B. Using DO-WHILE as the only loop technique
  C. Avoiding ELSE clauses
  D. Avoiding OTHER clauses
  A. Using SELECT constructs instead of If-THEN-ELSE

• Question 109:

  Which compiler option causes the compiler to flag any IF, WHILE, UNTIL and WHEN clauses that do not have the attributes BIT(1) NONVARYING?

  A. RULES(NOLAXWHILE)
  B. RULES(NOLAXIF)
  C. RULES(NOLAXUNTIL)
  D. RULES(NOLAXWHEN)
  B. RULES(NOLAXIF)

• Question 110:

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