The CWNA course was quite simple and logical. Perhaps there was too much emphasis on antenna systems, which in my case is mostly primary-school-level material, since I was already actively calculating cable attenuation, antenna dBi values, and building amplifiers, receivers, and transmitters back then.

At the same time, it is good to see that the fundamental things have not been forgotten in the maze of IT. I actually passed the test straight away with a score of 90%. After that, I read the book through, but still could not get above 90%; some small mistakes still slipped in, because in the Wi-Fi field there are so many abbreviations, and you need to know the whole history as well.

Still, sometimes it is useful to know these things too.