Network ?

What are you understand about network ? For me, what i understand about network using the simplest term is 'GROUP' or maybe network ID. Now what do you think ? Networking is use for sharing resources e.g. files, devices and etc ( other things that you can shared on network).

Important things to Networking

• IP Address - used to identify which group your pc/machine belongs to.
• MAC Address - used to identify your pc/machine within the group (Layer 2).

Type of Communication in Networking

IPV4
1. Unicast
One (1) device sending data to another one (1) device and wait until the device to reply to confirm the data transmission.

2. Broadcast
One device sending data to all other devices within the network and may get more than one reply that used for query purpose. e.g. server which can assign IP address to client within the network (DHCP discovery).

3. Multicast
One device send data to specific group within the network(s) and did not required any reply. e.g. video transmission.


IPV6
4. Anycast > Finding the nearest path e.g. nearest routers or servers.