When to use advance production mode, and how to use it?

I have developed my application as follows:

  1. used composer to install advanced template

  2. in init provided 0

  3. Created three more applications "admin", "seller" and "buyer" as advised in documentation.

  4. Now my application is ready to go live. So do i need run the init again with 1 as option inside the app folder ie "/var/www/html/MyApplication"?