which files and/or folders to copy when backing up database

[bryant]

I just installed the full version of Hoster to my show laptop. My question is
" How do I backup the database to my backup laptop I use for practice at home in order to maintain the exact status at all times on the backup laptop?" Currently I import everything to the show laptop only as I understand that the database updates automatically after all imports. Will I need to simply copy a certain file or folder from the show laptop after importing and bring the copy over to the backup laptop.?
Also, another question, "Can I use the portable HD on the show laptop and hook it up to the backtop laptop?" Will this work too?