Computer Networking for Dummies
What is networking?
Networking is designing, building and managing networks
What is internet?
Internet connection using satellite, cables, and phone networks, and integrate with servers to serve content.
What is www?
www — information on net, web using URL(uniform resource locator) with domain name registered with Icann or an IP address, chat, emails, file share using clients eg phones, laptops and connects using ISP (Internet Service Provider), or MAC address.with ethernet cable (copper- cat5/5e/6)or wirelessly (wifi) or fibre optics cables. DNS is the primary infrastructure that creates the Internet. (Domain Name Service)
Devices for networking (data transfer): routers, hubs, switches
What is a hub?
Hub is a device connecting many computers on a single network(physical layer device)
What is a switch?
Network switch(switching hub) can connect many devices on a single network by detecting thernet data(data link device layer). A switch remembers which devices are connected on each interface, while a hub does not, hence causes larger collision domains and speed/time delay.
