Not too easy. Not too difficult.
It's a lot of memorization (port numbers, OSI model, etc.) and you have to study a lot for it. Other than that, it's mostly vocab and learning how a network runs.
I learned how a network operates and the different security measures taken to prevent intrusion by individuals with malicious intent.
Hours per week:
Advice for students:
Actually study the vocabulary, and memorize the port numbers.