Zend Zend Certifications 200-710 Questions & Answers

• Question 151:

  What will an opcode cache ALWAYS automatically improve?

  A. Running time of a loop in a PHP script

  B. Efficiency of HTML markup generated by a PHP script

  C. Execution speed of a PHP script

  D. Memory footprint of a PHP script

  E. None of the above

  Correct Answer: E

• Question 152:

  Which one of the following XML declarations is NOT valid?

  A.

  B.

  C.

  D.

  Correct Answer: D

• Question 153:

  What will be the result of the following operation? array_combine(array("A","B","C"), array(1,2,3));

  A. array("A","B","C",1,2,3)

  B. array(1,2,3,"A","B",C")

  C. array("A"=>1,"B"=>2,"C"=>3)

  D. array(1=>"A",2=>"B",3=>"C")

  E. array(1,2,3)

  Correct Answer: C

• Question 154:

  What is the output of this code?

  $world = 'world';

  echo <<<'TEXT'

  hello $world

  TEXT;

  A. hello world

  B. hello $world

  C. PHP Parser error

  Correct Answer: C

• Question 155:

  What function can reverse the order of values in an array so that keys are preserved?

  A. array_flip()

  B. array_reverse()

  C. rsort()

  D. krsort()

  E. array_multisort()

  Correct Answer: B

• Question 156:

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

  A. A context can modify or enhance the behavior of a stream

  B. A context indicates what session the stream is part of

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

  D. Contexts are created with new Stream_Context();

  Correct Answer: AC

• Question 157:

  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

  Correct Answer: B

• Question 158:

  What DOM method is used to load HTML files?

  A. load()

  B. loadXML()

  C. loadHTML()

  D. loadHTMLFile()

  Correct Answer: D

• Question 159:

  Given the following code, what is correct?

  function f(stdClass and$x = NULL) { $x = 42; }

  $z = new stdClass;

  f($z);

  var_dump($z);

  A. Error: Typehints cannot be NULL

  B. Error: Typehints cannot be references

  C. Result is NULL

  D. Result is object of type stdClass

  E. Result is 42

  Correct Answer: E

• Question 160:

  What is "instanceof" an example of?

  A. a boolean

  B. an operator

  C. a function

  D. a language construct

  E. a class magic

  Correct Answer: B