Hello @JPele21 

the Q&A will be accessible also longer than a week in case you share Slido via permanent link. That way your participants would be able to access Slido even after the Slido dates expire. 

The Slido access code will expire and no longer work for joining. That means your participants would not be able to find your Slido code in the Slido search. 

In case you have any additional questions please let me know.
Kindly

Once the code expires could new questions be asked or I would I have to regenerate a new Q&A session?  Thank you for the first response. 

In case you would use the permanent link then your participants would still be able to access the Q&A and post new questions. In case you would want to close the Q&A session you could do that via this guide.

Once the code expires then you would need to create a new Slido with new Q&A session if you would like your participants to join using the code.