[Escapado]

I agree that that is probably the lowest stake solution. Alternatively there are solutions like the safe exam browser which locks down the device quite well during the exam session.

—- Disclosure: I run a small start up which offers teachers a platform to create and conduct digital exams and interfaces with the safe exam browser precisely because cheating is the number one complaint teachers I have spoken to have when it comes to digital exams.

[Atotalnoob]

Sure, and those require kernel level access, strip privacy, and don’t run on all OS