Sessions and rich join tables

I'm trying to make a simple quiz app, but I'm confused as to how to
work with sessions.

I have User table, Questions table. And I need to store the responses
of each questions by each user, so for example, user_id 2 answered
question_id 46 with choice 3.

Is a rich join table called for? Or should I store the data in session
and then store the session data for each response?

I dont know whether it'd be a better idea to store data for a set of
questions in a timed setting in a session or directly interact with
the table in the database because ultimately data will have to be
stored.

Please help me!!! It's not so much the code as it is the logic that's
confusing me...

sajeev86 wrote:

I'm trying to make a simple quiz app, but I'm confused as to how to
work with sessions.

I think i have an idea that
instead of creating individual form create one form and after finishing
test
or on completion test if finish test button is clicked or time is out
you submit this data and on controller you got multiple hashes
so manipulate this hash.
Or otherwise use session as compared to rich joins but it may have some
issues