1D0-437 Real Exam Questions and Verified Answers

Question 1 Single choice

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

Show answer and explanation

Correct answer: B

Question 2 Single choice

Consider the program code in the attached exhibit.

What is the result of executing this program code?

A
The code will output the following:
20 100 Apple Grapefruit Orange
B
The code will output the following: Apple Grapefruit Orange 20 100
C
The code will output the following:
100 20 Apple Grapefruit Orange
D
The code will output the following: Orange Grapefruit Apple 100 20

Show answer and explanation

Correct answer: B

Question 3 Single choice

The filehandle INPUT is associated with the file represented by $file.

Which statement will close the filehandle INPUT?

A
close (INPUT, $file);
B
closeINPUT;
C
INPUT(close, $file);
D
close(INPUT);

Show answer and explanation

Correct answer: D

Question 4 Single choice

Consider the following code block:

BEGIN {print ("Jan ");}

BEGIN {print ("Feb ");}

END {print ("Mar ");}

END {print ("Apr ");}

Print ("May ");

What is the result of this code block?

A
Jan Feb May Apr Mar
B
Jan Feb Mar Apr May
C
Mar Apr May Jan Feb
D
May Jan Feb Mar Apr

Show answer and explanation

Correct answer: A

Question 5 Single choice

Which of the following code segments correctly readies a database query, creating a valid statement handle and a result set?

Assume $dbh represents a valid database handle.

A
$sth = $dbh->prep_statement(SELECT * FROM aTable); $sth->execute_statement;
B
$sth = $dbh->prepare(SELECT * FROM aTable); $sth->execute;
C
$sth = $dbh->prep_statement(SELECT * FROM aTable); $sth->execute;
D
$sth = $dbh->prepare_statement(SELECT * FROM aTable); $sth->execute_statement;

Show answer and explanation

Correct answer: B

Question 6 Single choice

Consider the following program code:

$Animal = Dogs bark;

package Cat;

$Animal = Cats purr;

package Fish;

$Animal = Fish swim;

} p

ackage main;

print $Animal;

What is the result of executing this program code?

A
The code will fail at line 4.
B
The code will output the following: Dogs bark
C
The code will output the following: Cats purr
D
The code will output the following: Fish swim

Show answer and explanation

Correct answer: B

Question 7 Single choice

Consider the following program code:

@array = ("one", "two");

push(@array, "three");

shift(@array);

unshift(@array, "four");

pop(@array);

print($array[0]);

What is the output of this code?

A
one
B
two
C
three
D
four

Show answer and explanation

Correct answer: D

Question 8 Single choice

Which one of the following choices lists only valid expression operators?

A
+ - ** //
B
* ** / //
C
** / ++ %
D
*/ % -- **

Show answer and explanation

Correct answer: C

Question 9 Single choice

In Perl, packages are used for which task?

A
To label a program
B
To encrypt a program
C
To create new keywords
D
To define a namespace

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Correct answer: D

Question 10 Single choice

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?

A
The code will output the following: apple sun
B
The code will output the following: sun apple
C
The code will output the following: red yellow
D
The code will output the following:
apple red sun yellow

Show answer and explanation

Correct answer: C