You can see different levels of data depending on where you are looking on the presenter screen or channel reporting.
On the presenter screen, you can view the 'Questions from audience' tab - this displays all questions from the audience without contact details i.e questions appear anonymously.
When you navigate to 'Webcast reports' and select 'Report' for questions or feedback/ratings, you will see a high level view of the information that lists the attendees name, job title, company name and the question or piece of feedback.
To see all of the attendee's registration details as well as their question or rating/feedback, generate a report at the bottom of page. This will create a CSV file that can be viewed in application such as Microsoft Excel.