Networking
Hub vs Switch: The Real Difference (And Which One You Actually Need)
A hub broadcasts data to all devices while a switch sends it only to the intended recipient. Learn the key differences and why switches always win.
Everything about how your devices talk to each other and the internet — routers, DNS, IP addressing, ethernet cabling, and the troubleshooting steps that actually fix connection problems.
Networking
A hub broadcasts data to all devices while a switch sends it only to the intended recipient. Learn the key differences and why switches always win.
Networking
An Ethernet crossover cable connects two same-type devices directly without a switch. Learn how it works, when to use it, and whether you still need one today.
Networking
Understand what is a loopback address in simple terms. Learn why 127.0.0.1 exists and how localhost works.
Networking
Go beyond basic subnetting. Understand how 255.255.255.0 impacts IP allocation, scalability, broadcast traffic, and network planning.
Networking
What is Ethernet? Learn how Ethernet works, why a wired internet connection is often faster than Wi-Fi, and when it’s the better choice.