Free courseTechnology & IT
Networking Basics: How the Internet Reaches Your Desk
Learn how routers, IP addresses, DNS, Wi-Fi and protocols connect your desk to the internet, and how to test a connection step by step. Five short lessons and a quiz, with a certificate of completion.
60minutes
5lessons
1final quiz
Freecertificate of completion
What you’ll be able to do
- Name the devices on the path from your desk to the internet and say what each one does
- Read an IP address and explain public and private addresses, DHCP and DNS
- Compare Ethernet cabling with the 2.4, 5 and 6 GHz Wi-Fi bands and choose sensible Wi-Fi security
- Explain TCP, UDP, common port numbers, firewalls and VPNs in plain language
- Follow a step-by-step connection test using ping, ipconfig or ifconfig, nslookup and tracert
- Describe a network problem clearly enough for a provider or colleague to act on it
Curriculum
01
Course lessons
5 lessons · module quiz- 01
How the internet reaches your deskLesson - 02
IP addresses, DHCP and DNSLesson - 03
Ethernet and Wi-FiLesson - 04
Protocols, ports, firewalls and VPNsLesson - 05
Testing a connection and next stepsLesson - 06
QUIZNetworking Basics: final quizQuiz