How to Configure Snapshot to make a full copy of site

I want to make a full backup of my site, but I am a bit confused what are the proper setting to accomplish this. Can anyone help me with that?

I have reviewed the instructions but really explain to me if I enable or disable certain things what will happen. It would be nice it the instructions also included:

1. If you want to backup your entire website do this...
2. If you only want to backup your database do that...

Also I want to take the Snapshot file and upload it onto my localhost, so would it be easier if I send the Snapshot of my live (original site) to dropbox or google drive?