Zend 200-550 Online Practice Questions and Exam Preparation

Zend 200-550 Online Questions & Answers

• Question 51:

  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')

• Question 52:

  What is the length of a string returned by: md5(rand(), TRUE);

  A. Depends on the value returned by rand() function
  B. 32
  C. 24
  D. 16
  E. 64
  D. 16

• Question 53:

  Which of the following rules must every correct XML document adhere to? (Choose 2)

  A. It has to be well-formed.
  B. It has to be valid.
  C. It has to be associated to a DTD.
  D. It may only contain UTF-8 encoded characters.
  A. It has to be well-formed.
  B. It has to be valid.

• Question 54:

  Which of the following statements is NOT correct?

  A. Only methods can have type hints
  B. Typehints can be optional
  C. Typehints can be references
  A. Only methods can have type hints

• Question 55:

  Your supervisor wants you to disallow PHP scripts to open remote HTTP and FTP resources using PHP's file functions. Which php.ini setting should you change accordingly?

  allow_url_fopen, allow_url_fopen=off, allow_url_fopen=Off, allow_url_fopen = off, allow_url_fopen = Off

• Question 56:

  Which of the following is used to find all PHP files under a certain directory?

  A. PHPIterator
  B. RecursiveTreeIterator
  C. RecursiveDirectoryIterator
  D. SplTempFileObject
  C. RecursiveDirectoryIterator

• Question 57:

  Please provide the value of the $code variable in the following statement to set an HTTP status code that signifies that the requested resource was not found. http_response_code($code);

  404, 404 Not Found

• Question 58:

  What is the output of the following code?

  var_dump(boolval([]));

  A. bool(true)
  B. bool(false)
  B. bool(false)

• Question 59:

  Consider the following code:

  $result = $value1 ??? $value2;

  Which operator needs to be used instead of ??? so that $result equals $value1 if $value1 evaluates to true, and equals $value2 otherwise? Just state the operator as it would be required in the code.

  ?

• Question 60:

  What DOM method is used to load HTML files?

  A. load()
  B. loadXML()
  C. loadHTML()
  D. loadHTMLFile()
  D. loadHTMLFile()