Free course · Security & Cloud
Networking Basics
How networks actually move data — IP addresses, routers, Wi-Fi and the troubleshooting steps that fix most problems. The free first step toward CCNA, a skill 8 of 100 researched employers named.
6lessons
16quiz questions
6exercises
1graded lab
Watch the course walkthrough
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What you'll be able to do
- Trace what actually happens between tapping send and the double tick, and name the machines involved.
- Understand IP addresses, public vs private ranges, and find the addresses of your own devices.
- Tell apart the jobs inside the box on your wall, and set up a small office network on paper.
- Understand DNS name lookup and use ping and tracert to watch your own packets travel.
- Secure a home or small-office network properly, and understand what firewalls and VPNs actually do.
- Apply the layered troubleshooting sequence to any 'internet is not working', and know what the networking career path looks like from here.
When you want the whole trade
CCNA
CCNA — Networking Foundations
This free course is the introduction. The programme is taught by a trainer, marked by the academy, and carries the syllabus in full — the part an employer asks about.
See the full syllabus and feeCourse content
- 1 The journey of one WhatsApp message Trace what actually happens between tapping send and the double tick, and name the machines involved.
- 2 IP addresses: the postal system of the internet Understand IP addresses, public vs private ranges, and find the addresses of your own devices. Sign in to open
- 3 Routers, switches and Wi-Fi: the boxes and what each one does Tell apart the jobs inside the box on your wall, and set up a small office network on paper. Sign in to open
- 4 DNS and the path out: names, servers and what 'the internet' runs on Understand DNS name lookup and use ping and tracert to watch your own packets travel. Sign in to open
- 5 Network security: locking the doors you now know exist Secure a home or small-office network properly, and understand what firewalls and VPNs actually do. Sign in to open
- 6 Troubleshooting method — and the road to CCNA Apply the layered troubleshooting sequence to any 'internet is not working', and know what the networking career path looks like from here. Sign in to open
Course lab
Graded lab Your own network, mapped, measured and audited Open the lab →Related free courses
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