If you consider the purpose is to monitor the entire computer to see if you have notes pulled up, you can see why they have this requirement.
I thought the entire premise of proctorU and proctorTrack (which gatech is now using instead of proctorU) was ridiculous though. A cheap hdmi splitter and a long cable would be all you needed to pipe the test out to a second monitor in another room where someone could scoop up the whole test for later. Or maybe even feed back answers to some tiny headphones hidden behind the ear. Impossible to detect.
