Zend 200-550 Exam Questions Free Practice Test

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Questions # 41:

Which of the following does NOT help to protect against session hijacking and fixation attacks?

Options:

Use SSL and set the $secure cookie parameter to true .

Set the session.use_only_cookies php.ini parameter to 1 .

Set the session.cookie_lifetime php.ini parameter to 0 .

Protect against XSS vulnerabilities in the application.

Rotate the session id on successful login and logout using session_regenerate_id()

Expert Solution

Questions # 42:

What is the name of the PHP function used to automatically load non-yet defined classes?

Options:

autoload()

__autoload()

__catch()

load()

loadClass()

Expert Solution

Questions # 43:

What is the output of the following code?

class C {

public $x = 1;

function __construct() { ++$this->x; }

function __invoke() { return ++$this->x; }

function __toString() { return (string) --$this->x; }

}

$obj = new C();

echo $obj();

Options:

Expert Solution

Questions # 44:

What function can be used to retrieve an array of current options for a stream context?

Options:

stream_context_get_params

stream_context_get_default

stream_context_get_options

The 'options' element of the stream_get_meta_data return value

Expert Solution

Questions # 45:

You want to parse a URL into its single parts. Which function do you choose?

Options:

parse_url()

url_parse()

get_url_parts()

geturlparts()

Expert Solution

Questions # 46:

Which of the following is true about stream contexts? (Choose 2)

Options:

A context can modify or enhance the behavior of a stream

A context indicates what session the stream is part of

A context is a set of parameters and stream wrapper specific options

Contexts are created with new Stream_Context();

Expert Solution

Questions # 47:

Which php.ini setting is usually required to use an opcode cache?

Options:

extension

zend_extension

optimizer

Expert Solution

Questions # 48:

How should class MyObject be defined for the following code to work properly? Assume $array is an array and MyObject is a user-defined class.

$obj = new MyObject();

array_walk($array, $obj);

Options:

MyObject should extend class Closure

MyObject should implement interface Callable

MyObject should implement method __call

MyObject should implement method __invoke

Expert Solution

Questions # 49:

What parsing methodology is utilized by the SimpleXML extension?

Options:

SAX

DOM

XPath

Push/Pull Approach

Expat

Expert Solution

Questions # 50:

Which of the following statements about Reflection is correct?

Options:

Reflection is an extension that can be disabled

Reflection is a new extension present only in PHP 5.3+

Reflection only allows to reflect on built-in classes

Built-in classes can be reflected on command line using php --rc

Expert Solution

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