I think the response to this is very subjective and will depend on who the examiner is and might be shaped by their past experiences.
Once you get to university, you will realize that there are different kinds of teachers and examiners- some teachers will teach, and set exactly what they taught in class and expect that your response reflects this. Other, will give you pointers and expect that you will go out and research and may thus examine on the knowledge you get upon your research, given the pointers.
Normally, I have very mixed expectations and thoughts while in an exam room. From past experiences, and student behavior, I suspect some are attempting to cheat, I see the good students and I think “this one must be nailing it!”, at times I feel disappointed especially when I note that people are giving wrong answers to things I put so much effort in. In some occasion, I actually summon the student after the exam to just understand where the problem is.
In Kenya, currently, I would say that the most negative thought would be that the students will attempt to cheat. Given the new “Matiangi” approach, I hope that this will be less of a concern 🙂