Zend 200-710 Online Practice Questions and Exam Preparation

Zend 200-710 Online Questions & Answers

• Question 21:

  FILL BLANK

  What is the output of the following code?

  

  5

• Question 22:

  What is the result of the following bitwise operation in PHP? 1 ^ 2

  A. 1
  B. 3
  C. 2
  D. 4
  E. -1
  B. 3

• Question 23:

  FILL BLANK

  Which PHP extension allows connecting to the server using a variety of protocols, including HTTP, FTP, LDAP, and more?

  libcurl

• Question 24:

  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
  E. Result is 42

• Question 25:

  Which of the following will set a 10 seconds read timeout for a stream?

  A. ini_set("default_socket_timeout", 10);
  B. stream_read_timeout($stream, 10);
  C. Specify the timeout as the 5th parameter to the fsockopen() function used to open a stream
  D. stream_set_timeout($stream, 10);
  E. None of the above
  D. stream_set_timeout($stream, 10);

• Question 26:

  What is the output of the following code?

  $a = array('a', 'b'=>'c');

  echo property_exists((object) $a, 'a')?'true':'false';

  echo '-';

  echo property_exists((object) $a, 'b')?'true':'false';

  A. false-false
  B. false-true
  C. true-false
  D. true-true
  B. false-true

• Question 27:

  An object can be counted with count() and sizeof() if it...

  A. implements ArrayAccess
  B. has a public __count() method
  C. was cast to an object from an array
  D. None of the above
  D. None of the above

• Question 28:

  What is the benefit of using persistent database connections in PHP? (Choose two.)

  A. Reduces the connection and authentication overhead of connecting to the database
  B. Ensures that only a single connection is open to the database from PHP
  C. Allows connection settings such as character set encoding to persist
  D. Allows for resumption of transactions across multiple requests.
  C. Allows connection settings such as character set encoding to persist
  D. Allows for resumption of transactions across multiple requests.

• Question 29:

  What DOMElement method should be used to check for availability of a non-namespaced attribute?

  A. getAttributeNS()
  B. getAttribute()
  C. hasAttribute()
  D. hasAttributeNS()
  C. hasAttribute()

• Question 30:

  Consider the following table data and PHP code, and assume that the database supports transactions.

  What is the outcome?

  Table data (table name "users" with primary key "id"):

  id name email

  1 anna [email protected]

  2 betty [email protected]

  3 clara [email protected]

  5 sue [email protected]

  PHP code (assume the PDO connection is correctly established):

  $dsn = 'mysql:host=localhost;dbname=exam';

  $user = 'username';

  $pass = '********';

  $pdo = new PDO($dsn, $user, $pass);

  try {

  $pdo->exec("INSERT INTO users (id, name, email) VALUES (6, 'bill', '[email protected]')");

  $pdo->begin();

  $pdo->exec("INSERT INTO users (id, name, email) VALUES (7, 'john', '[email protected]')");

  throw new Exception();

  } catch (Exception $e) {

  $pdo->rollBack();

  }

  A. The user 'bill' will be inserted, but the user 'john' will not be.
  B. Both user 'bill' and user 'john' will be inserted.
  C. Neither user 'bill' nor user 'john' will be inserted.
  D. The user 'bill' will not be inserted, but the user 'john' will be.
  A. The user 'bill' will be inserted, but the user 'john' will not be.