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  5. CIW PERL FUNDAMENTALS Questions and Answers

1D0-437 CIW PERL FUNDAMENTALS Questions and Answers

Questions 4

Which one of the following choices will replace all occurrences of the word perl with the word Perl?

Options:

A.

s/Perl/perl/I;

B.

s/"perl"/"Perl"/g;

C.

s/"perl"/"Perl"/;

D.

s/perl/Perl/g;

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Questions 5

Which of the following correctly creates a SQL statement that will insert the values of the $name and $age variables into a database? The statement is assigned to the $sqlStmt variable. Assume a CHAR data type for $name and an INT data type for $age.

Options:

A.

$sqlStmt = q{INSERT INTO aTable (NAME, AGE) VALUES ($name, $age)};

B.

$sqlStmt = q{INSERT INTO aTable (NAME, AGE) VALUES ($name\, $age)};

C.

$sqlStmt = qq{INSERT INTO aTable (NAME, AGE) VALUES ($name, $age)};

D.

$sqlStmt = qq{INSERT INTO aTable (NAME, AGE) VALUES (\$name\, $age)};

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Questions 6

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

Options:

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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Questions 7

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?

Options:

A.

reverse(%chars);

B.

%chars = reverse(%chars);

C.

reverse(%chars) = %chars;

D.

invert(%chars);

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Questions 8

Which of the following choices demonstrates the correct syntax for creating a hash?

Options:

A.

%passwds = ("denise", "robert", "yolanda") => ("pass1", "pass2", "pass3");

B.

%passwds() = ("denise", "pass1", "robert", "pass2", "yolanda", "pass3");

C.

%passwds = (denise=> "pass1", robert=> "pass2", yolanda=> "pass3");

D.

%passwds{3} = ("denise", "robert", "yolanda") => ("pass1", "pass2", "pass3");

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Questions 9

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?

Options:

A.

Jan Feb May Apr Mar

B.

Jan Feb Mar Apr May

C.

Mar Apr May Jan Feb

D.

May Jan Feb Mar Apr

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Questions 10

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

Options:

A.

+ - ** //

B.

* ** / //

C.

** / ++ %

D.

*/ % -- **

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Questions 11

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?

Options:

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

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Questions 12

Which one of the following statements opens a file for appending?

Options:

A.

open(PASSWD, ">/etc/passwd");

B.

open(PASSWD ">/etc/passwd");

C.

open(PASSWD, ">>/etc/passwd");

D.

open(PASSWD "+>/etc/passwd");

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Questions 13

Consider the following program code:

1.$x = 100;

2.$y = "-25";

3.$sum = $x + $y;

4.

5.print $sum;

What is the result of executing this program code?

Options:

A.

The code will output the following:

100-25

B.

The code will output the following:

75

C.

The code will fail at line 3 because $y contains string data.

D.

The code will output the following:

125

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Questions 14

Which line of code represents the correct syntax to establish a reference to a database handle?

Options:

A.

$dbh = DBI::connect("dbi:mysql:myPhoneBook");

B.

$dbh = DBD:->connect("dbi::mysql::myPhoneBook");

C.

$dbh = DBD::connect("mysql:dbi:myPhoneBook");

D.

$dbh = DBI->connect("dbi:mysql:myPhoneBook");

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Questions 15

Consider the following code:

%hashA = ("alpha", "beta", "gamma", "alpha");

%hashA = reverse(%hashA);

print $hashA{"alpha"};

What is the result of executing this code?

Options:

A.

The code outputs the following:

alpha

B.

The code outputs the following:

beta

C.

The code outputs the following:

gamma

D.

The code fails at line 3.

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Questions 16

Consider the following program code:

$i = 15;

LOOP: for(; $i < 25; $i++)

{

if ($i % 2)

{

next LOOP;

}

print($i );

}

What is the result of executing this program code?

Options:

A.

The code will output the following:

15 2 4 6 8 10 12 14 16 18 20 22 24

B.

The code will output the following:

15 17 19 21 23 25

C.

The code will fail at line 2 because $i is not initialized.

D.

The code will output the following:

16 18 20 22 24

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Questions 17

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?

Options:

A.

reverse(%chars);

B.

%chars = reverse(%chars);

C.

reverse(%chars) = %chars;

D.

invert(%chars);

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Questions 18

In Perl, modules are used for which task?

Options:

A.

To organize packages

B.

To provide code reusability

C.

To separate code in a file

D.

To create separate namespaces

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Questions 19

Consider the following program code:

@array = (10, Masami, 10..13, Niklas);

for ($i = 1; $i < $#array; $i++)

{

print($array[$i] );

}

What is the result of executing this program code?

Options:

A.

The code will output the following:

Masami 10 11 12 13

B.

The code will output the following:

10 Masami 10 11 12 13

C.

The code will output the following:

10 Masami 11 12 13 Niklas

D.

The code will output the following:

Masami 10 11 12 13 Niklas

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Questions 20

In Perl, packages are used for which task?

Options:

A.

To label a program

B.

To encrypt a program

C.

To create new keywords

D.

To define a namespace

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Questions 21

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?

Options:

A.

Jan Feb May Apr Mar

B.

Jan Feb Mar Apr May

C.

Mar Apr May Jan Feb

D.

May Jan Feb Mar Apr

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Questions 22

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

Options:

A.

@cities = Akron, Memphis, Ogden, Phoenix;

B.

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

C.

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

D.

@cities = ("Akron");

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Exam Code: 1D0-437
Exam Name: CIW PERL FUNDAMENTALS
Last Update: Dec 22, 2024
Questions: 149

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