The lecture materials are very basic, and the lecture videos are just reading the lecture materials. Also, there are some typos in the lecture materials and past exam questions. As others have already left reviews, it seems difficult to obtain CCNA with just this lecture. I usually don't leave reviews because it's annoying, but I don't recommend this lecture. If your only goal is to obtain CCNA, it seems like a much faster way is to obtain the dump file and memorize it.