Joking apart, as an ATPL instructor I find this is THE weakest link for most students. Regretfully it is a sad reflection on the English (lack of) education system and exams that are now little short of a joke.
You and I seem to be in the same profession.
Most of my students are .....
....useless.
The worst aspect is that they think they will be able to be aircraft commanders and get an ATPL by "databasing".
Well, they probably can, but a job interview is something else.
Hello young person.
Tell me now - why are vortex generators no longer used on jet transports to reduce shock-induced flow separation.