One LAN head is T-568A on one cable and T-568B on the other is used to connect between computers without a switch or hub (also called cross-connection). Since 2009, network cards have been able to connect such cables to either the T-568A or the T-568B.
Summary of Discussion
1. A network is a network of two or more computers.
2. The main network is defined as LAN, MAN, WAN. A LAN is a local area network and is a computer connected within a building. A LAN is the smallest network in an area. Area Network (WAN) is the largest area network in the world. It is also called the network of the network because it is connected to many networks.
3. Protocol is a language used to connect different file types to different OS platforms and communication devices.
4. There are five classes of IP: class A, B, C, D, E. Class D, and E are not mentioned here, but only A, B, and C are the most commonly used in the world.
1 to 126 is class A (referring to First Octet)
B class from 128 to 191 (referring to First Octet)
C class 192 to 233 (referring to First Octet).