1D0-437 CIW PERL FUNDAMENTALS Questions and Answers

Consider the following program code:

%color = (sun => yellow, apple => red);

reverse(%color);

@colorKeys = sort(keys(%color));

foreach(@colorKeys)

{

print($color{$_} . );

}

What is the result of executing this program code?

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?

Which one of the following choices lists the three loop-control commands?

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

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

The filehandle INPUT is associated with the file represented by $file. Which statement will close the filehandle INPUT?

Which of the following accurately describes the roles of the Database Interface Module (DBI) and the Database Driver Module (DBD)?

Consider that a file named test.txt contains this line of text:

One line of test text.

What is the output of the following lines of code?

$file = "test.txt";

open (OUT, "<$file") || (die "cannot open $file: $!");

seek(OUT, 15, 0);

read(OUT, $buffer, 5);

print $buffer . "\n";

print tell(OUT);

Consider the following program code:

$x = 10;

LOOP: while ($x < 15)

{

print ($x );

if ($x >= 14 && $x <= 20)

{

$x += 2;

redo LOOP;

}

else

{

$x++;

}

What is the result of executing this program code?

Consider the following program code:

$x = 0;

$y = 5;

do

{

print ($x $y );

}

while (++$x < 5 && ++$y < 10);

print ($x $y );

What is the result of executing this program code?

Consider the following program code:

$Animal = Dogs bark;

package Cat;

$Animal = Cats purr;

{

package Fish;

$Animal = Fish swim;

}

package main;

print $Animal;

What is the result of executing this program code?

In the context of Perl user-defined subroutines, which statement is the most accurate?

Which one of the following choices will assign the current package Library1?

Consider the following program code:

1.$x = 100;

2.$y = 15;

3.$result = $x % $y;

4.

5.print $result;

What is the result of executing this program code?

Which one of the following statements uses correct syntax and expressions?

Consider the following program code:

@array = ("ALPHA", "beta", "GaMmA");

@array = sort(@array);

print("@array");

What is the output of this code?

Consider the following program code:

if ("Apple" gt "Pear")

{

print("True ");

}

else

{

print("False ");

}

if ("Banana" le "Banana")

{

print("True ");

}

else

{

print("False ");

}

What is the result of executing this program code?

Consider the following assignments:

$x = 9

$y = 7

$z = 5

Given these assignments, which one of the following expressions evaluates as true?

Consider the following program code:

if ("cool" =~ m/[cool]{4}/)

{

print("True ");

}

else

{

print("False ");

}

if ("cool" =~ m/[col]{4}/)

{

print("True ");

}

else

{

print("False ");

}

What is the output of this code?