Comment by vunderba
It doesn't really scale and doesn't work for all materials but I'd love to see the concept of oral test/defenses introduced at the undergraduate level.
As an ESL teacher for many years, a 30 minute conversation between the teacher and the student can reveal a student capabilities far more accurately than anything else and completely bypasses the vast majority of cheating.
Just use supervised testing. It's scalable, battle tested, and pervasive. Even ignoring scalability, orals have problems. KISS!