200-550 Exam Questions

Which interfaces could class C implement in order to allow each statement in the following code to work? (Choose 2) $obj = new C(); foreach ($obj as $x => $y) { echo $x, $y; }

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

Which one of the following XML declarations is NOT valid?

Which requirements need NOT be met so that file uploads work?

A/hen comparing prepared statements and regular, application-constructed SQL statements, which of the following is true?

How can the line on which HTTP headers were sent inside a script be determined?

Webservices are primarily meant to support

What do bytecode caches do?

Which of the following functions will allow identifying unique values inside an array?

When using password_hash() with the PASSWORD_DEFAULT algorithm constant, which of the following is true? (Choose 2)

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

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

When a transaction reports no affected rows, it means that: (Choose 2)

Which of the following superglobals does not contain data from the client?

When a browser requests an image identified by an img tag, it never sends a Cookie header.

Which of the following techniques ensures that a value submitted in a form can only be yes or no ?

Which function can NOT help prevent cross-site scripting? (Choose 2)

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

Which of the following statements about exceptions are correct? (Choose 2)

An unbuffered query will: (Choose 2)

Which of the following is NOT possible using reflection?