quiz how-to architecture breakdown mechanics works

i understand the 'read-only' side of drupal. ie: the creation & use of non-interactive content (involving content types, nodes, CCK & drupals menu system 'as controlled through the admin interface'). but for quiz questions things are different right, because questions are interactive? i mean, do you have to use the Form API? & is an understanding of drupals menu system needed? & possibly an understanding of page.tpl.php? & possibly other stuff too?

any insights into how Quiz module works much appreciated.