Zend Zend Certifications 200-710 Questions & Answers

• Question 141:

  One common security risk is exposing error messages directly in the browser. Which PHP configuration directive can be disabled to prevent this?

  A. html_display

  B. error_reporting

  C. display_errors

  D. error_log

  E. ignore_repeated_errors

  Correct Answer: C

• Question 142:

  Given the following code, how can we use both traits A and B in the same class? (select all that apply)

  trait A {

  public function hello() {

  return "hello";

  }

  public function world() {

  return "world";

  }

  }

  trait B {

  public function hello() {

  return "Hello";

  }

  public function person($name) {

  return ":$name";

  }

  }

  A. Rename the A::hello() method to a different name using A::hello as helloA;

  B. Use B::hello() instead of A 's version using B::hello insteadof A

  C. Use B::hello() instead of A 's version using use B::hello

  D. Rename the A::hello() method to a different name using A::hello renameto helloA;

  E. None of the above (both can be used directly)

  Correct Answer: B

• Question 143:

  What super-global should be used to access information about uploaded files via a POST request?

  A. $_SERVER

  B. $_ENV

  C. $_POST

  D. $_FILES

  E. $_GET

  Correct Answer: D

• Question 144:

  Consider the following table data and PHP code. What is a possible 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);

  $cmd = "SELECT name, email FROM users LIMIT 1";

  $stmt = $pdo->prepare($cmd);

  $stmt->execute();

  $result = $stmt->fetchAll(PDO::FETCH_BOTH);

  $row = $result[0];

  A. The value of $row is `array(0 => 'anna', 1 => '[email protected]')`.

  B. The value of $row is `array('name' => 'anna', 'email' => '[email protected]')`.

  C. The value of $row is `array(0 => 'anna', 'name' => 'anna', 1 => '[email protected]', 'email' => '[email protected]')`.

  D. The value of $result is `array('anna' => '[email protected]')`.

  Correct Answer: C

• Question 145:

  What is the output of the following code?

  class Base {

  protected static function whoami() {

  echo "Base ";

  }

  public static function whoareyou() {

  static::whoami();

  }

  }

  class A extends Base {

  public static function test() {

  Base::whoareyou();

  self::whoareyou();

  parent::whoareyou();

  :whoareyou();

  static::whoareyou();

  }

  public static function whoami() {

  echo "A ";

  }

  }

  class B extends A {

  public static function whoami() {

  echo "B ";

  }

  }

  :test();

  A. B B B B B

  B. Base A Base A B

  C. Base B B A B

  D. Base B A A B

  Correct Answer: C

• Question 146:

  Given a JSON-encoded string, which code sample correctly indicates how to decode the string to native PHP values?

  A. $json = new Json($jsonValue); $value = $json->decode();

  B. $value = Json::decode($jsonValue);

  C. $value = json_decode($jsonValue);

  D. $value = Json::fromJson($jsonValue);

  Correct Answer: C

• Question 147:

  Which of the following filtering techniques prevents all cross-site scripting (XSS) vulnerabilities?

  A. Strip all occurrences of the string