I've heard you can poll your participants in Connect. You can use this to collect responses to a quiz. Anyone done this?
You can add a poll pod in the meeting room from Pods Menu--> Poll Pod--> Add new Poll.
You can add 3 types of polls - multiple choice, multiple answers and short answer. Participants can then answer the poll after host opens the poll.
Once all the participants have answered the poll question, host can close the poll and can see the reports in webapp (from where he launched the meeting room).
Though compaing poll with a quiz won't be right as unlike in a quiz there is no RIGHT answer in case of a poll.
Hope this info helps!
To learn more about creating polls see this quick demo created by lynda.com