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 200-550 Dumps with Practice Exam Questions Answers

Questions: 223 questions

Last Update: Dec 19, 2024

Zend Certification Exam 200-550 has been designed to measure your skills in handling the technical tasks mentioned in the certification syllabus

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200-550 Questions and Answers

Question # 1

What is the output of the following code?

class Number {

private $v;

private static $sv = 10;

public function __construct($v) { $this->v = $v; }

public function mul() {

return static function ($x) {

return isset($this) ? $this->v*$x : self::$sv*$x;

};

}

}

$one = new Number(1);

$two = new Number(2);

$double = $two->mul();

$x = Closure::bind($double, null, 'Number');

echo $x(5);

A.

5

B.

10

C.

50

D.

Fatal error

Question # 2

What is the name of the method that can be used to provide read access to virtual properties in a class?

A.

__call()

B.

__get()

C.

__set()

D.

__wakeup()

E.

__fetch()

Question # 3

What is the output of the following code?

for ($i = 0; $i < 1.02; $i += 0.17) {

$a[$i] = $i;

}

echo count($a);

A.

0

B.

1

C.

2

D.

6

E.

7

Question # 4

What is "instanceof" an example of?

A.

a boolean

B.

an operator

C.

a function

D.

a language construct

E.

a class magic

Question # 5

From your PHP application, how can you send the same header twice, but with different values?

A.

Set the second argument of the header() function to false

B.

PHP does that automatically

C.

You may only send a particular type of header once

D.

Use the header_add() function