Networking & Internet Introduction

Networking connects computers and devices to enable communication and data sharing. The internet - a global network of networks - has become the backbone of modern life, supporting communication, commerce, media, and services for billions of people. Key networking concepts include IP addresses, DNS, TCP/IP protocols, routers, switches, and bandwidth. The World Wide Web, invented by Tim Berners-Lee in 1989, created the graphical, hyperlinked layer most users experience. Wi-Fi, fibre optics, and 5G have expanded connectivity. Cloud computing delivers computing resources over the internet. This sub-category tests knowledge of how networks function, the technologies underlying the internet, key protocols and infrastructure, cybersecurity in networked environments, and the history of connectivity that created our always-on digital world.

This topic is part of Technology - use the stack and domains tools below, then practice with flashcards and quizzes.