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Code d'Examen: 200-500
Nom d'Examen: Zend-Technologies (Zend PHP 5 Certification)
Questions et réponses: 219 Q&As

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NO.1 Which of the following statements is correct?
A. Interfaces can extend only one interface
B. Interfaces can extend more than one interface
C. Interfaces can inherit a method from different interfaces
D. Interfaces can redeclare inherited methods
Answer: B

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NO.2 What is the output of the following code?
echo 0x33, ' monkeys sit on ', 011, ' trees.';
A. 33 monkeys sit on 11 trees.
B. 51 monkeys sit on 9 trees.
C. monkeys sit on trees.
D. 0x33 monkeys sit on 011 trees.
Answer: B

Zend-Technologies examen   200-500   200-500

NO.3 A script residing at http://example.com/phpcert/cookies.php contains the following code:
1.<?php
2 setcookie('name1', 'value1', time() + 60*60*24, '/');
3 setcookie('name1', 'value2');
4 ?>
The web browser is configured to accept all cookies. How many cookies will be set by this script?
A. 0
B. 1
C. 2
D. 3
Answer: C

Zend-Technologies examen   200-500   200-500   200-500   certification 200-500

NO.4 What is the output of the following script?
1 <?php
2 class a
3 {
4 public $val;
5 }
6
7 function renderVal (a $a)
8 {
9 if ($a) {
10 echo $a->val;
11 }
12 }
13
14 renderVal (null);
15 ?>
A. A syntax error in the function declaration line
B. An error, because null is not an instance of 'a'
C. Nothing, because a null value is being passed to renderVal()
D. NULL
Answer: B

Zend-Technologies examen   200-500 examen   200-500   200-500   200-500

NO.5 You work for a shared hosting provider, and your supervisor asks you to disable user scripts to
dynamically load PHP extensions using the dl() function. How can you do this? (Choose 2)
A. Set enable_dl to Off in the server's php.ini configuration file.
B. Add dl to the current value of disable_functions in the server's php.ini configuration file.
C. Add dl to the current value of disable_classes in the server's php.ini configuration file.
D. Write a custom function called dl(), save it under the name prepend.inc and then set the
auto_prepend_file directive to prepend.inc in php.ini.
Answer: AB

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NO.6 Which of the following data types is implicitly passed by reference in PHP 5 while it is passed by value
in PHP 4?
A. Class
B. String
C. Object
D. Array
Answer: C

Zend-Technologies   200-500 examen   200-500   200-500 examen

NO.7 When a class is defined as final it:
A. Can no longer be extended by other classes.
B. Means methods in the class are not over-loadable.
C. Cannot be defined as such, final is only applicable to object methods.
D. Is no longer iteratable.
Answer: A

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NO.8 When checking whether two English words are pronounced alike, which function
should be used for the best possible result?
A. levenshtein()
B. metaphone()
C. similar_text()
D. soundex()
Answer: B

Zend-Technologies   certification 200-500   certification 200-500

NO.9 What is the maximum size of the VARCHAR column type?
A. 255 Bytes
B. 255 Characters
C. 512 Bytes
D. 512 Characters
E. No Limit
Answer: B

Zend-Technologies examen   200-500 examen   200-500

NO.10 Which of the following can be registered as entry points with a SoapServer instance (choose 3):
A. A single function
B. A single method from a class
C. Multiple functions at once
D. All methods from a class
E. All classes defined in a script
Answer: ACD

Zend-Technologies examen   200-500   certification 200-500

NO.11 What is the output of the following code?
<code>
class test {
public $value = 0;
function test() {
$this->value = 1;
}
function __construct() {
$this->value = 2;
}
}
$object = new test();
echo $object->value;
A. 2
B. 1
C. 0
D. 3
E. No Output, PHP will generate an error message.
Answer: A

Zend-Technologies   200-500   200-500   200-500

NO.12 You are creating an application that generates invoices in a variety of formats, including PDF, ODS
and HTML. Each of these formats is represented as a PHP class in your application. While some of the
operations can be performed on all of the different formats (such as saving and loading), other operations
may be specific to one or two of the formats (such as setting as read only). Which design pattern should
you use for this application?
A. Adapter
B. Factory
C. MVC
D. Singleton
Answer: B

Zend-Technologies   200-500   200-500   200-500 examen   certification 200-500

NO.13 Given the following code, what is correct?
function f(stdClass &$x = NULL) { $x = 42;
}
$z = new stdClass;
f($z);
var_dump($z);
A. Error: Typehints cannot be NULL
B. Error: Typehints cannot be references
C. Result is NULL
D. Result is object of type stdClass
E. Result is 42
Answer: E

Zend-Technologies   certification 200-500   200-500   200-500 examen   200-500

NO.14 Which of the following statements is NOT true?
a) Class constants are public
b) Class constants are being inherited
c) Class constants can omit initialization (default to NULL)
d) Class constants can be initialized by consts
A. a)
B. b)
C. c)
D. d)
Answer: C

Zend-Technologies examen   200-500   200-500   200-500 examen   certification 200-500

NO.15 How many elements does the $matches array contain after the following function call is performed?
preg_match('/