Zend Zend Certifications 200-710 Questions & Answers

• Question 81:

  What is the result of the following code?

  define('PI', 3.14);

  class T

  {

  const PI = PI;

  }

  class Math

  {

  const PI = T::PI;

  }

  echo Math::PI;

  A. Parse error

  B. 3.14

  C. PI

  D. T::PI

  Correct Answer: B

• Question 82:

  Transactions should be used to: (Choose 2)

  A. Prevent errors in case of a power outage or a failure in the SQL connection

  B. Ensure that the data is properly formatted

  C. Ensure that either all statements are performed properly, or that none of them are.

  D. Recover from user errors

  Correct Answer: AC

• Question 83:

  What is the output of the following code?

  function fibonacci (and$x1 = 0, and$x2 = 1)

  {

  $result = $x1 + $x2;

  $x1 = $x2;

  $x2 = $result;

  return $result;

  }

  for ($i = 0; $i < 10; $i++) {

  echo fibonacci() . ',';

  }

  A. An error

  B. 1,1,1,1,1,1,1,1,1,1,

  C. 1,1,2,3,5,8,13,21,34,55,

  D. Nothing

  Correct Answer: B

• Question 84:

  Which constant must be passed as the second argument to htmlentities() to convert single quotes (') to HTML entities?

  A. TRUE

  B. FALSE

  C. ENT_QUOTES

  D. ENT_NOQUOTES

  E. ENT_COMPAT

  Correct Answer: C

• Question 85:

  You want to access the 3rd character of a string, contained in the variable $test. Which of the following possibilites work? (Choose 2)

  A. echo $test(3);

  B. echo $test[2];

  C. echo $test(2);

  D. echo $test{2};

  E. echo $test{3};

  Correct Answer: BD

• Question 86:

  Assuming UTF-8 encoding, what is the value of $count?

  

  A. 0

  B. 4

  C. 5

  D. 7

  Correct Answer: C

• Question 87:

  Which of the following are NOT acceptable ways to create a secure password hash in PHP? (Choose 2)

  A. md5()

  B. hash_pbkdf2()

  C. password_hash()

  D. crypt()

  E. openssl_digest()

  Correct Answer: AE

• Question 88:

  What does the __FILE__ constant contain?

  A. The filename of the current script.

  B. The full path to the current script.

  C. The URL of the request made.

  D. The path to the main script.

  Correct Answer: B

• Question 89:

  Which of these databases is NOT supported by a PDO driver?

  A. Microsoft SQL Server

  B. SQLite

  C. Microsoft Access

  D. Berkeley DB

  Correct Answer: D

• Question 90:

  Is the following code vulnerable to SQL Injection ($mysqli is an instance of the MySQLi class)?

  $age = $mysqli->real_escape_string($_GET['age']);

  $name = $mysqli->real_escape_string($_GET['name']);

  $query = "SELECT * FROM `table` WHERE name LIKE '$name' AND age = $age";

  $results = $mysqli->query($query);

  A. No, the code is fully protected from SQL Injection.

  B. Yes, because the $name variable is improperly escaped.

  C. Yes, because the $name variable and the $age variable is improperly escaped.

  D. Yes, because the $age variable is improperly escaped.

  E. Yes, because you cannot prevent SQL Injection when using MySQLi

  Correct Answer: D