on the review question 15 of CH3 its says "B is correct the beacon frame is equal to 1011 in the subtype field" but from the standard IEEE 2016 it looks like that is from authentication. 1000 is for beacon.
I know the book will be outdated soon but i have exam CWAP402 tomorrow. if i get a question like this should i answer beacon as the answer as the test might be false too or do i answer the correct answer "authentication"?
I noticed this also. The correct answer is indeed authentication. If I were you, I'd make sure to comment on that question if you do get it during the exam.
Ok! thanks commenting might be the best responce!