How can i learn about networks

1. Clients and servers—how services such as e-mail and web pages connect using networks.

2. IP addresses—how devices on a network can be found.

3. Network hubs, switches and cables—the hardware building blocks of any network.

4. Routers and firewalls—how to organize and control the flow of traffic on a network.

a few, because i should have plenty.

plot immersion i am not fully sure with it though