On top of the air turbulence caused by thrusters, the noise would carry great distances. Recreational drones are already pretty obnoxious and they weigh several orders of magnitude less than a personal aircraft.

It’s a valid point, but if you’re doing this occasionally for long distance road trips the affect is negligible. Most people do / should charge at home for their day to day travel. The higher cost of supercharging vs. at home charging further encourages this behavior.

Most remote proctored tests already work this way. Web cams on, starts with a 360 recording of your work area to ensure there is nothing to reference / cheat with, detects if your eyes move off screen, scans and monitors all processes running on your computer. In addition, a remote “viewer” can see your camera and hear your audio and chat with you if anything is suspicious.

I thought it was pretty insane when I first saw my nephew take a test like this, but it seems they’re already fairly well prepared.