People looking this up online aren't cheating, by definition they are studying. Sure, you could look up previous exams for learning the topic, but you could as

People looking this up online aren't cheating, by definition they are studying. Sure, you could look up previous exams for learning the topic, but you could as well just copy the answers. Given that the answers were [supposedly] obviously wrong and the cheating students still used them pretty clearly indicates that they were not using previous exams for studying, otherwise they would have noticed that the answers are wrong as they contradict what was taught in the lectures and what other sources say. All that's left is rote memorization. Learn this fact, remember this principle in that scenario. There is a vast gulf between memorizing stuff and understanding it. The basic goal of every education is understanding existing knowledge and being able to apply it, memorizing stuff is not enough and I guess you should not be able to pass exams without some level of understanding. Being able to go beyond the existing knowledge and having original ideas is not required unless you want to go into research.