In my City, a school baord called TDSB, manages every school / all its authority. It control all networks and what happens in each school. They use Desktop Authority which connects to a TDSB server to acces your account, techniques like open cmd, its blocked, proxy websites are blocked, anything other then guest account prvlages are blocked, you cant even delete history in your browser,
you can access your files on your tdsb account from any school-Everything is saved for 5 Years after you leave High school... its hard