IBM C6030-042 Online Practice Questions and Exam Preparation

IBM C6030-042 Online Questions & Answers

• Question 1:

  Requirement:

  The function LEAPYEAR evaluates a given 4-digit number and returns `1'B if it is a leap year, `0'B if it is not. This function is supposed to work for the years 2004 to 2015. Leap years occur every four years, except for years ending in 00 that

  are not divisible by 400. Which of the following solutions meets the requirement and does NOT need to be changed if the requirement changes to: The function is supposed to work for the years 1900 to 3000.

  A. LEAPYEAR: PROC(YEAR) RETURNS(BIT(1));DCL YEAR PlC `9999';DCL (MOD,VERIFY) BUILTIN;SELECT;WHEN (VERIFY(YEAR,'0l 23456789') ^= 0) RETURN('0'B);WHEN (MOD (YEAR,100) = 0)RETURN('0'B);WHEN (MOD (YEAR,4) = 0)RETURN('1'B);OTHERRETURN('0'B);END;END LEAPYEAR;
  B. LEAPYEAR: PROC(YEAR) RETURNS(BIT(1));DCL YEAR PlC `9999';DCL VERIFY BUILTIN;IFVERIFY(YEAR,0123456789)^= 0 THEN RETURN('0'B);SELECT(YEAR);WHEN (2004) RETURN('1'B);WHEN (2008) RETURN('1'B);WHEN (2012) RETURN('1'B);OTHER RETURN ('0'B);END;END LEAPYEAR;
  C. LEAPYEAR: PROC(YEAR) RETURNS(BIT(1));DCL YEAR PlC `9999';DCL (MOD,VERIFY) BUILTIN;SELECT;WHEN (VERIFY(YEAR `0123456789') ^= 0) RETURN('0'B);WHEN (MOD (YEAR,400) = 0) RETURN('l'B); WHEN (MOD (YEAR,100) = 0) RETURN('0'B); WHEN (MOD(YEAR,4) = 0) RETURN('1'B); OTHER RETURN('0'B);END;END LEAPYEAR;
  D. LEAPYEAR: PROC(YEAR) RETURNS(BIT(1));DCL YEAR PlC `9999';DCL (MOD,VERIFY) BUILTIN;SELECT;WHEN (VERIFY(YEAR `0123456769') ^= 0) RETURN('0'B); WHEN (MOD (YEAR,100) = 0) RETURN('0'B);WHEN (MOD (YEAR,400) = 0) RETURN('1'B);WHEN (MOD(YEAR,4) = 0) RETURN('1'B);OTHERRETURN('0'B);END;END LEAPYEAR;
  C. LEAPYEAR: PROC(YEAR) RETURNS(BIT(1));DCL YEAR PlC `9999';DCL (MOD,VERIFY) BUILTIN;SELECT;WHEN (VERIFY(YEAR `0123456789') ^= 0) RETURN('0'B);WHEN (MOD (YEAR,400) = 0) RETURN('l'B); WHEN (MOD (YEAR,100) = 0) RETURN('0'B); WHEN (MOD(YEAR,4) = 0) RETURN('1'B); OTHER RETURN('0'B);END;END LEAPYEAR;

• Question 2:

  What will be printed, if anything, to SYSPRINT after executing the following code?

  DCL A FIXED CONTROLLED;

  DCL P PTR;

  DCL X FIXED BASED(P);

  ALLOC A;

  A = 1;

  ALLOC A;

  A = 2;

  P = ADDR(A);

  ALLOC A;

  A = 3;

  P = ADDR(A);

  ALLOC A;

  A = 4;

  FREE A;

  FREE A;

  PUT DATA(X);

  A. 2
  B. 3
  C. 4
  D. The results are undefined.
  D. The results are undefined.

• Question 3:

  Which of the following techniques, if any, can be used to parallelize a PL/I program?

  A. Attach threads to pieces or work that are independent from others
  B. Attach a thread to every subroutine in the program.
  C. Attach a thread to every external entry in the program.
  D. Parallelization is not possible in PL/I program.
  A. Attach threads to pieces or work that are independent from others

• Question 4:

  Which software model is LEAST appropriate it requirements keep changing?

  A. Waterfall model
  B. Spiral model (also known as Iterative model)
  C. Rapid Application Development model
  D. Object-oriented model
  A. Waterfall model

• Question 5:

  An external subroutine procedure requires 10 variables belonging to an input file and 10 variables belonging to an output file. What is best practice in passing these variables to the procedure?

  A. Pass the 20 variables individually in the parameter list.
  B. Integrate the 20 variables in one structure and pass the address of the structure in the parameter list.
  C. Declare the 20 variables EXTERNAL in both the calling program and in the procedure called and pass no variable in the parameter list.
  D. Integrate the 10 variables belonging to the input file in one structure and the 10 variables belonging to the output file in another one and pass the addresses of them as parameters to the procedure.
  D. Integrate the 10 variables belonging to the input file in one structure and the 10 variables belonging to the output file in another one and pass the addresses of them as parameters to the procedure.

• Question 6:

  The lead developer has reviewed the team's progress and determined that the deadline of one week cannot be met since all of the modules have not been thoroughly tested. Which of the following is the best action for the lead developer to take?

  A. Ask management for more staff to ensure the testing is completed by the deadline.
  B. Suggest that management lower the price of the productsince it does not have all therequired functionality.
  C. Tell managementthatthe quality of the software maybe lowerthan expected but itwill be delivered on time.
  D. Tell management that not all functionality can be provided but those modules provided will be of high quality.
  D. Tell management that not all functionality can be provided but those modules provided will be of high quality.

• Question 7:

  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

  A. DO while there are records in FIL01IF record in FIL01 specifies update THENDO for all records matching in FIL02Update record in FIL02 with information from FIL01 end DO
  B. end IF
  C. Read next record in FIL01
  D. end DO
  E. A
  F. B
  G. C
  H. D
  B. end IF

• Question 8:

  What characterizes the hierarchical data model with respect to data access?

  A. Data access supports parent-child relationships.
  B. Data access supports tables.
  C. Data access can only be sequential.
  D. Data access can only be via an index.
  A. Data access supports parent-child relationships.

• Question 9:

  In which of the following groups of compiler options could all the options specified cause the compiler to generate code which requires more time at execution?

  A. ATTRIBUTES(FULL),XREF(FULL),DEFAULT (EVENDEC,DUMMY(UNALIGNED)),OFFSET
  B. OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)
  C. OPTIMIZE(2),DEFAULT(REORDER,NOLAXDCL,NOLAXCTL),STORAGE,MMTEMP(1000)
  D. APCH(5),BIFPREC(31),NOTESTMTUNE(5),NOSERVICE
  B. OPTIMIZE(0),NOREDUCE,PIREFIX(SIZE,SUBSCRIPTRANGE)

• Question 10:

  What would the attribute table in a compile list be used for when looking at the variable in a dump?

  A. Find where variable is used
  B. Find name of variable
  C. Find hex offset of variable
  D. Find variable attributes
  D. Find variable attributes