1D0-437 Exam - CIW PERL FUNDAMENTALS

Question No: 5

Running your Perl scripts with a d switch will perform which task?

A. Invoke the Perl debugger

B. Send standard error to a file

C. Disable breakpoints

D. Display a stack trace

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Question No: 6

Consider the following program code:

print(1 );

BEGIN { print(2 ); }

END { print(3 ); }

BEGIN { print(4 ); } END

{

package MyPackage; print(5 );

}

What is the result of executing this program code?

A. The code will output the following: 1 2 3 4 5

B. The code will output the following: 2 4 1 5 3

C. The code will output the following: 2 1 3 4 5

D. The code will output the following: 2 4 1 3

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Question No: 7

Which one of the following choices uses the correct syntax for a valid array assignment?

A. @cities = Akron, Memphis, Ogden, Phoenix;

B. @cities =~ ("Akron, Memphis");

C. @cities =~ (Akron, Memphis, Ogden, Phoenix);

D. @cities = ("Akron");

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Question No: 8

Consider the following program code:

$var = 10; package Alpha;

$var = 20;

{

package Beta;

$var = 30;

}

package Gamma;

$var = 40;

{

print $var;

}

What is the output of this code?

A. 10

B. 20

C. 30

D. 40

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Question No: 9

Consider the following code:

%chars = ("a", "100", "b", "90", "c", "80");

Which one of the following choices will reverse the key/value pairing of the code?

A. reverse(%chars);

B. %chars = reverse(%chars);

C. reverse(%chars) = %chars;

D. invert(%chars);

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Question No: 10

Consider the following program code:

%hash = (small => 8oz,

medium => 16oz, large => 32oz);

@keys = sort(keys(%hash));

for ($i = 0; $i < 3; $i++) { print($hash{$keys[$i]}\n);

}

What is the result of executing this program code?

A. The code will fail at line 1 because a hash cannot contain both numeric and string data.

B. The code will execute without error but will output nothing.

C. The code will output the following: 32oz

16oz 8oz

D. The code will output the following: large

medium small

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Question No: 11

Consider the program code in the attached exhibit. What is the result of executing this program code?

A. The code will output the following: 50

B. The code will output the following: 0

C. The code will output the following: 5

D. The code will output the following: multiply(5, 10)

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Question No: 12

Consider the following lines of code:

sub mySub {

$_ = @_[1];

$a = shift;

$b = shift;

return $a * $b * $_;

}

mySub(1,2,3);

What is the output of these lines of code?

A. No output results from this code.

B. 6

C. 2

D. 4

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Question No: 13

Which of the following describes the functionality of the DBI tables method?

A. The tables method returns a list of all system tables in a database.

B. The tables method returns a list of all user-defined tables in a database.

C. The tables method returns a list of all tables in a database.

D. The tables method returns a list of all related tables in a database.

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Question No: 14

Regular expressions are best used for which task?

A. To perform arithmetic functions

B. To determine whether a string matches a specific pattern

C. To perform spelling checks within text files

D. To output data to a text file

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