Hi everyone,
Please note the following update in "quiz3-2017-sol.pdf" in the practice quizzes under Module Quiz 4. For the question that asks about the cases where a man-in-the-middle attack cannot break the confidentiality of the communication between A and B. The previous version included option (a) to be considered correct. However, given that the statement holds for both cases (a) and (b), the only correct answer would be (c). Selecting option (a) or (b) alone is considered wrong.