World of Computer Networking Your CCNA start - What is a Network?

The video tutorial explains the concept of networks, highlighting that every device on the Internet belongs to a specific network. It describes networks as logical groups of devices that can communicate via switches without needing routers. The tutorial introduces the network prefix and network mask, which help determine if devices belong to the same network. It explains how IP addresses are divided into network and host parts, similar to the division of device identifiers. The network mask defines where the network part ends and the host part begins. The video concludes with a brief mention of private IP address ranges.

What is the difference between the network part and the host part of an IP address?

Explain the significance of the network mask in IP addressing.