Zend 200-710 Online Practice Questions and Exam Preparation

Zend 200-710 Online Questions & Answers

• Question 101:

  Type hinting in PHP allows the identification of the following variable types: (Choose 2)

  A. String
  B. Integer
  C. Array
  D. Any class or interface type
  E. All of the above
  C. Array
  D. Any class or interface type

• Question 102:

  When retrieving data from URLs, what are valid ways to make sure all file_get_contents calls send a certain user agent string? (Choose 2)

  A. $default_opts = array('http'=>array('user_agent'=>"My Cool Browser")); $default = stream_context_set_default($default_opts);
  B. stream_context_set_option("user_agent", "My Cool Browser");
  C. ini_set('user_agent', "My Cool Browser");
  D. stream_context_set_option($context, "http", "user_agent", "My Cool Browser");
  A. $default_opts = array('http'=>array('user_agent'=>"My Cool Browser")); $default = stream_context_set_default($default_opts);
  C. ini_set('user_agent', "My Cool Browser");

• Question 103:

  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
  C. 50

• Question 104:

  What is "instanceof" an example of?

  A. a boolean
  B. an operator
  C. a function
  D. a language construct
  E. a class magic
  B. an operator

• Question 105:

  What is the name of the header used to require HTTP authentication?

  A. Authorization-Required
  B. WWW-Authenticate
  C. HTTP-Authenticate
  D. Authentication-Required
  E. HTTP-Auth
  B. WWW-Authenticate

• Question 106:

  Given the following DateTime objects, what can you use to compare the two dates and indicate that $date2 is the later of the two dates?

  $date1 = new DateTime('2014-02-03');

  $date2 = new DateTime('2014-03-02');

  A. $date2 > $date1
  B. $date2 < $date1
  C. $date1->diff($date2) < 0
  D. $date1->diff($date2) > 0
  A. $date2 > $date1

• Question 107:

  What purpose do namespaces fulfill?

  A. Encapsulation
  B. Alternative to classes
  C. Improved performance
  D. All of the above
  A. Encapsulation

• Question 108:

  What is the result of the following code?

  class T

  {

  const A = 42 + 1;

  }

  echo T::A;

  A. 42
  B. 43
  C. Parse error
  C. Parse error

• Question 109:

  Which of the following is NOT true about PHP traits? (Choose 2)

  A. Multiple traits can be used by a single class.
  B. A trait can implement an interface.
  C. A trait can declare a private variable.
  D. Traits are able to be auto-loaded.
  E. Traits automatically resolve conflicts based on definition order.
  B. A trait can implement an interface.
  E. Traits automatically resolve conflicts based on definition order.

• Question 110:

  After performing the following operations: $a = array('a', 'b', 'c'); $a = array_keys(array_flip($a)); What will be the value of $a?

  A. array('c', 'b', 'a')
  B. array(2, 1, 0)
  C. array('a', 'b', 'c')
  D. None of the above
  C. array('a', 'b', 'c')