Zend 200-550 Online Practice Questions and Exam Preparation

Zend 200-550 Online Questions & Answers

• Question 41:

  Given a PHP value, which sample shows how to convert the value to JSON?

  A. $string = json_encode($value);
  B. $string = Json::encode($value);
  C. $json = new Json($value); $string = $json->__toString();
  D. $value = (object) $value; $string = $value->__toJson();
  A. $string = json_encode($value);

• Question 42:

  What types of HTTP authentication are supported by PHP? (Choose 2)

  A. Basic
  B. Advanced
  C. Strict
  D. Digest
  E. Realm
  A. Basic
  D. Digest

• Question 43:

  What is the output of the following code?

  function increment (and$val)

  {

  return $val + 1;

  }

  $a = 1;

  echo increment ($a);

  echo increment ($a);

  22

• Question 44:

  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
  A. Limit the amount of memory a script can consume
  C. Limit the maximum execution time of a script

• Question 45:

  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 46:

  Which parts of the text are matched in the following regular expression?

  $text = <<

  The big bang bonged under the bung.

  EOT;

  preg_match_all('@b.n?g@', $text, $matches);

  A. bang bong bung
  B. bang bonged bung
  C. big bang bong bung
  D. big bang bung
  C. big bang bong bung

• Question 47:

  Which of the following expressions will evaluate to a random value from an array below? $array = array("Sue","Mary","John","Anna");

  A. array_rand($array);
  B. array_rand($array, 1);
  C. shuffle($array);
  D. $array[array_rand($array)];
  E. array_values($array, ARRAY_RANDOM);
  D. $array[array_rand($array)];

• Question 48:

  Which SPL class implements fixed-size storage?

  SplFixedArray

• Question 49:

  What is the output of the following code?

  $f = function () { return "hello"; };

  echo gettype($f);

  A. hello
  B. string
  C. object
  D. function
  C. object

• Question 50:

  What is the output of the following code? echo '1' . (print '2') + 3;

  A. 123
  B. 213
  C. 142
  D. 214
  E. Syntax error
  D. 214