How to make a survey on a site managed by Bitrix?

Question

1C-Bitrix

In general, I am not at all familiar with Bitrix, I look like a new gate.
But you need to do the following:
A page with an agreement that you need to accept by checking the box and pressing the button, after which it redirects you to a page with a questionnaire that you need to fill out and save.
Ideally, the questionnaire data would be saved in a separate database from the one where Bitrix is ​​​​spinning. Well, or at least in a separate plate.
Maybe the modules are ready? Actually where to dig? What to tie to what?
If there is a separate table, is it possible to use the form tool?
Version: 1C-Bitrix: Site Management 16.0.4

Answer 1

dig the web form module.
Create an event that when saving the answer - duplicate the data where you need.

Answer 2

Module "Polls, voting": https://www.1c-bitrix.ru/products/cms/features/pol...