200-550 - Zend Practice Exam Questions - 100% Free

Question No : 1 -

Which of the following is NOT a requirement for file uploads to work?

A. The PHP directive file_uploads must be set to On
B. The form's method attribute must be set to "post"
C. The form must include a hidden input element with the name set to "MAX_FILE_SIZE"
D. The form's enctype attribute must be set to "multipart/form-data"

Answer : C

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mahabubul

C. The form must include a hidden input element with the name set to "MAX_FILE_SIZE"

mahabubul

The form must include a hidden input element with the name set to "MAX_FILE_SIZE"

Question No : 2 -

What would be the output of the following code?
namespace MyFramework\DB;
class MyClass {
static function myName() {
return __METHOD__;
print MyClass::myName();

A. MyFramework\DB\myName
B. MyFramework\DB\MyClass\myName
C. MyFramework\DB\MyClass::myName
D. MyClass::myName

Answer : C

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armadillo

Code is written as: namespace MyFramework\DB; class MyClass { static function myName() { return __METHOD__; print MyClass::myName(); its missing the closing braces: namespace MyFramework\DB; class MyClass { static function myName() { return __METHOD__; } } print MyClass::myName();

mahabubul

MyFramework\DB\MyClass::myName

Question No : 3 -

Consider the following code. What can be said about the call to file_get_contents?
$getdata = "foo=bar";
$opts = array('http' =>
array(
'method' => 'POST',
'header' => 'Content-type: application/x-www-form-urlencoded',
'content' => $getdata
);
$context = stream_context_create($opts);
$result = file_get_contents('http://example.com/submit.php', false, $context);

A. A GET request will be performed on http://example.com/submit.php
B. A POST request will be performed on http://example.com/submit.php
C. An error will be displayed

Answer : B

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eduardo.almeida

file_get_contents description: string file_get_contents ( string $filename [, int $flags [, resource $context [, int $offset [, int $maxlen ]]]] ) One can define a context in which file_get_contents will be executed using stream_context_create. You can see that the later has the option of performing a POST, so the correct answer is "B. A POST request will be performed on http://example.com/submit.php".

Question No : 4 -

What is the output of the following code?
class Number {
private $v = 0;
public function __construct($v) { $this->v = $v; }
public function mul() {
return function ($x) { return $this->v * $x; };
$one = new Number(1);
$two = new Number(2);
$double = $two->mul()->bindTo($one);
echo $double(5);

Answer : 5

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ricardo_bp

It would output a parse error!

mahabubul

echo $double(5);

Question No : 5 -

What is the result of the following code?
class T
const A = 42 + 1;
echo T::A;

A. 42
B. 43
C. Parse error

Answer : C

Question No : 6 -

What is the output of the following code?
function increment (&$val)
return $val + 1;
$a = 1;
echo increment ($a);
echo increment ($a);

Answer : 22

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ill

Where is "{" ?

zixyxwro

There is no need for "{". It is to test your knowledge of PHP without using "{ }"

Anticode

it return fatal error

Question No : 7 -

Which is the most efficient way to determine if a key is present in an array, assuming the
array has no NULL values?

A. in_array('key', array_keys($a))
B. isset($a['key'])
C. array_key_exists('key', $a)
D. None of the above

Answer : B

Question No : 8 -

Which PHP function is used to validate whether the contents of
$_FILES['name']['tmp_name'] have really been uploaded via HTTP?

Answer : is_uploaded_file(), is_uploaded_file

Question No : 9 -

What can prevent PHP from being able to open a file on the hard drive (Choose 2)?

A. File system permissions
B. File is outside of open_basedir
C. File is inside the /tmp directory.
D. PHP is running in CGI mode.

Answer : A,B

Question No : 10 -

Which of the following statements about Reflection is correct?

A. Reflection is an extension that can be disabled
B. Reflection is a new extension present only in PHP 5.3+
C. Reflection only allows to reflect on built-in classes
D. Built-in classes can be reflected on command line using php --rc <classname>

Answer : D

Question No : 11 -

Which of the following methods are available to limit the amount of resources available to
PHP through php.ini? (Choose 2)

A. Limit the amount of memory a script can consume
B. Limit the total amount of memory PHP uses on the entire server
C. Limit the maximum execution time of a script
D. Limit the maximum number of concurrent PHP processes
E. Limit the maximum number of concurrent PHP threads

Answer : A,C

Question No : 12 -

When would you use classes and when would you use namespaces?

A. Use classes to encapsulate code and represent objects, and namespaces to avoid symbol name collisions
B. Use classes for performance-sensitive code, and namespaces when readability matters more
C. Use namespaces for performance-sensitive code, and classes when readability matters more
D. Always use them; namespaces are always superior to classes

Answer : A

Question No : 13 -

Which of the following is correct? (Choose 2)

A. A class can extend more than one class.
B. A class can implement more than one class.
C. A class can extend more than one interface.
D. A class can implement more than one interface.
E. An interface can extend more than one interface.
F. An interface can implement more than one interface.

Answer : D,E

Question No : 14 -

The constructs for(), foreach(), and each() can all be used to iterate an object if the object...

A. implements ArrayAccess
B. implements Iterator
C. implements Iterator and ArrayAccess
D. None of the above

Answer : C

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mahabubul

implements Iterator and ArrayAccess

zixyxwro

False. Valid answers should be : A. implements ArrayAccess B. implements Iterator Because you can implement either one.

zixyxwro

^ Correction : C is correct. My excuses... To use brackets you need ArrayAccess.

Question No : 15 -

Which of these elements can be encapsulated by namespaces and made accessible from
the outside?

A. Only classes
B. Classes, functions and constants
C. Classes, functions, constants and variables

Answer : B

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