Free C6030-042 Exam Dumps PDF Preview

Question 1

Single choice

ltthere is a direct read access to a data objectwith a unique key (e.g., DB2-SELECT, IMS-GU, ...
),which otthe following return codes is possible?

A
OK, not found, database not available
B
OK, endfile, not found
C
OK, duplicate key, database not available
D
OK, endfile, database not available

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Correct answerA

Question 2

Single choice

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.

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Correct answerC

Question 3

Single choice

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

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Correct answerA

Question 4

Single choice

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;

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Correct answerC

Question 5

Single choice

In the following example how many lines, if any, will be printed?

GRAPH: PROC OPTIONS(MAIN);
DCL I FIXED BIN (31);
DCL POINTS FIXED BIN (31);
CALL INIT_POINTS;
DO I = 1 TO 100;
GET LIST(POINTS);
CALL PLOT_NEXT(POINTS);
END;
INIT_POINTS: PROC;
DCL I FIXED BIN (31);
DCL POINTS(1000) FIXED BIN (31);
DCL BAR CHAR (100) INIT((100)'*') STATIC;
DO I 1 TO 10;
POINTS(I) = I;
PUT SKIP LIST (POINTS(I),SUBSTR(BAR,1,I));
END;
RETURN;
PLOT_NEXT: ENTRY(I);
POINTS(I) = I;
PUT SKIP LIST(POINTS(I),SUBSTR(BAR,1 I));
END;
END GRAPH;

A
10
B
100
C
110
D
It is unpredictable as the program will fail.

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Correct answerD

Question 6

Single choice

Which of the following will definitely NOT cause an unresolved external entry?

A
Missing library at link time
B
The main procedure name matching the binder or load module `name'
C
A mismatch in names between the CALL and the actual procedure
D
An incorrect DECLARE for the external entry

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Correct answerB

Question 7

Single choice

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

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Correct answerB

Question 8

Single choice

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.

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Correct answerA

Question 9

Single choice

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.

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Correct answerB

Question 10

Single choice

Which of the following is the most appropriate way of avoiding a recursive deadlock?

A
Aborting the Transaction
B
Setting a time limit on the runtime of the Transaction
C
Partitioning the relevant Database
D
Changing the program

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Correct answerD

Question 11

Single choice

Which of the following steps is NOT required to use the IBM Debug Tool on a PL/I program?

A
Compile with TEST option
B
Write an Language Environment user condition handler
C
Plan points where the program should stop during testing
D
Have the source code available

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Correct answerB

Question 12

Single choice

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;

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Correct answerC

Question 13

Single choice

What happens after the following statements?

DCLI,J CHAR(5) INIT('54321');
I = J;
PUT LIST(l);

A
54321 will be printed.
B
5.4321E+04 will be printed.
C
CONVERSION condition will be raised.
D
SIZE condition will be raised.

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Correct answerD

Question 14

Single choice

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

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Correct answerA

Question 15

Single choice

The following code is supposed to find the earlier date between today's date and the given input date which is input to the program in YYYYMMDD format. What happens when the program is executed?

DCL DATE JN CHAR (8);
DCL DAT E_MIN CHAR (8);
GET (DATE IN);
DATE_MIN = MIN(SUBSTR(DATETIME(), 1, 8), DATE IN);

A
The program ends abnormally at runtime.
B
The statement works as intended.
C
The resulting value consists of 8 blanks.
D
The resulting value consists or a mixing or numbers and blanks.

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Correct answerC

Question 16

Single choice

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.

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Correct answerA

Question 17

Single choice

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;

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Correct answerC

Question 18

Single choice

What is a program specification document?

A
A description of what the program does and how it can be used
B
A description of how the program does its work
C
The pseudocode of the program
D
The history of changes of the program and how it was used

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Correct answerA

Question 19

Single choice

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)

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Correct answerB

Question 20

Single choice

Given the following declarations, which code is likely to perform best and correctly initialize structure 3?

DCL 1 S UNALIGNED,
2 A CHAR(3),
2 B BIN FIXED(31),
2 C DEC FIXED(5);
DCL 1 T UNALIGNED LIKE S;
T = ";

A
S = ";
B
S = T,BY NAME;
C
CALL PLIFILL(ADDR(S),'`,STG(S));
D
CALL PLIMOVE(ADDR(S),ADDR(T),STG(S));

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Correct answerD

Question 21

Single choice

What happens to STATIC variables declared in a procedure when the procedure is called recursively?

A
STATIC variables are allocated only once and can, therefore, be used for communication between invocations.
B
The values of STATIC variables from the previous invocation are saved and are available when the current invocation ends.
C
The values of STATIC variables from the previous invocation are lost.
D
STATIC variables are allocated and initialized at each new invocation.

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Correct answerA

Free C6030-042 Exam Dumps Preview

Developing with IBM Enterprise PL/I

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QUESTION 2

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QUESTION 6

QUESTION 7

QUESTION 8

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QUESTION 13

QUESTION 14

QUESTION 15

QUESTION 16

QUESTION 17

QUESTION 18

QUESTION 19

QUESTION 20

QUESTION 21