There are many websites that offer a service of making a quiz online. Most of them offer some kind of free service.

Traditional quiz sites offers:

• You can make a quiz online
• Share it with your friend
• Protect it with password
• Analyze quiz results

A wiki quiz sites offers:

• All (or most of) the traditional quiz sites features
• Sharing quiz questions (not just the quiz)
• Create a quiz by using existing quiz questions (no need to invent the wheel)
• Creating only a quiz question and sharing it on the site for others to use in their quiz.