Computer Networks
How the internet actually works: packets, addresses, routing, and the layered protocols that carry every click.
Prof. Katarina Ilić
Professor of Networking
Common questions
Who is "Computer Networks" for?
It is written for learners at Undergraduate level (College), and for anyone older who wants a clear refresher on computer science. How the internet actually works: packets, addresses, routing, and the layered protocols that carry every click. There is no application or entry test — you can start the first lesson straight away.
How long does the course take?
There are 3 lessons totalling 27 minutes of reading and quizzes, laid out over 3 units. You can move at your own pace — progress is saved as you go.
What do I need to know before starting?
No prior coursework is assumed. The course opens with "Packets & Addresses", covering ip addresses and packet switching, so the foundations are built in rather than expected.
Is the course free?
Yes. Every course on Monster Class is completely free, with no credit card, trial period or paywall. Creating a free account simply saves your progress, XP and place on the leaderboard across devices.