IBM C6030-042 Online Practice Questions and Exam Preparation

IBM C6030-042 Online Questions & Answers

• Question 1:

  Given the following declaration for X:

  DCLX FIXED DEC (3) INIT (123);

  If Y is declared as CHAR, what should its minimum length be to preserve the value 123 if these statements are executed?

  Y = X;

  X =Y;

  A. 3
  B. 4
  C. 5
  D. 6
  D. 6

• Question 2:

  Given the following code, what will happen?

  DCL(K, L) FIXED DEC (1);

  K= 1;

  L = 2;

  PUT SKIP LIST (12+K/L);

  A. The outputis 12.5.
  B. The program ends abnormally at runtime.
  C. The resulting value is 6.5.
  D. The output is 12.4999999999999.
  B. The program ends abnormally at runtime.

• Question 3:

  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 4:

  Given the lollowing declarations, what statement will raise STRINGSIZE condition if enabled?

  DCLA_STR CHAR (100) VARYING;

  DCLB_STR CHAR(10) STATIC;

  DCL C_STR CHAR (100);

  A. A_STR = B_STR;
  B. C_STR = B_STR;
  C. SUBSTR(C_STR, 92) = B_STR;
  D. C_STR = A_STR;
  C. SUBSTR(C_STR, 92) = B_STR;

• Question 5:

  If the PROC name is less than 8 characters, what ENTRY point should be specified for a PL/I routine which will be FETCHed?

  A. PLISTART
  B. CEESTART L
  C. The PROC name
  D. The PROC name followed by a `1'
  C. The PROC name

• Question 6:

  What happens after executing the following code?

  DCL OUTFILE FILE RECORD OUTPUT;

  DCLP PTR;

  DCL I BIN FIXED(31);

  DCL A BIN FIXED(31) BASED(P);

  DO I = 1 TO 10;

  LOCATE A FILE(OUTFILE) SET(P);

  A = I;

  END;

  CLOSE FILE(OUTFILE);

  A. 10 records will be written with value 1 to 10.
  B. 10 records will be written with first record value undefined.
  C. 9 records will be written with value 1 to 9.
  D. 9 records will be written with value 2 to 10.
  A. 10 records will be written with value 1 to 10.

• Question 7:

  Requirement Copy a dataset of record length 100 to another dataset. If the following code does not fulfill the requirement above, which is the most likely reason?

  DCL DDIN FILE RECORD INPUT;

  DCL DDOUT FILE RECORD OUTPUT;

  DCL INSTRUC CHAR(100);

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

  ON ENDFILE(DDIN) EOF_IN = `1'B;

  READ FILE(DDIN) INTO(INSTRUC);

  DO WHlLE(^EOF_IN);

  WRITE FILE(DDOUT) FROM(INSTRUC);

  READ FILE(DDIN) INTO(INSTRUC);

  WRITE FILE(DDOUT) FROM(INSTRUC);

  END;

  A. The code does not fulfill the requirement because too many records will be written to the output dataset, except when the input dataset is empty.
  B. The code does notfulfill the requirement because the input structure is the same as the outputstructure.
  C. The code does notfulfill the requirement because the OPEN statements are missing.
  D. The code fulfills the requirement.
  A. The code does not fulfill the requirement because too many records will be written to the output dataset, except when the input dataset is empty.

• Question 8:

  Given the following pseudocode inside a loop, where should the COMMIT action be placed assuming that there is always a one-to-many relationship between header and detail tables?

  1 Find header row 2 IF found 3 Update header row 4 Find detail row 5 IF found THEN 6 Update detail rows 7 ELSE 8 ENDIF 9 ENDIF

  A. Afterline 3
  B. Afterline 6
  C. Afterline 8
  D. After lines 3, 8, and 9
  C. Afterline 8

• Question 9:

  Which of the following runtime options should be reviewed when attempting to improve performance in a PL/I program?

  A. DEPTCONDLMT, INFOMSGFILTER, MSGFILE and RPTOPTS
  B. TRACE, TRAP, CHECK and DEBUG
  C. ALL31, STORAGE, HEAP and STACK
  D. ERRCOUNT, LIBSTACK, HEAPPOOLS and XPLINK
  C. ALL31, STORAGE, HEAP and STACK

• Question 10:

  Which of the following compile list sections would be used to find the location of a static variable in a dump?

  A. Attribute/Xref Table
  B. Source Listing
  C. Table of Offsets and Statement Numbers
  D. Storage Offset Listing
  D. Storage Offset Listing