What happens if a student can' t get to college for their exam because of weather?

What happens if a student genuinely can't make it to school/college because it's been snowing and the buses aren't running and you can't get the car out of the drive and they have an exam first thing that morning? I have an exam on friday morning and there's potentially going to be snow. There was snow on monday and the bus was 50 minutes late, meaning I missed nearly all of my first lesson. What if this were to happen on a day where I have an exam first thing in the morning? It would be so embarrassing to walk into the exam hall 50 minutes late. Also, what would happen if the buses weren't running and therefore I couldn't make the exam at all? Please help, so worried about missing my exam!

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).