Various network technologies exist, each with distinct features and uses, including point-to-point and multi-point networks, LANs, MANs, WANs, PANs, VPNs, and SDNs. The choice depends on factors like network scale, device types, security needs, and specific applications.

They are called as ‘Ethernet’ for the LAN where a network is created as wired, ‘Token Ring’ for connected the devices in a circular ring pattern with the help of a token passed through the network for enabling the connection, ‘Token Bus’ for connecting the devices using coaxial cables and tokens, ‘FDDI or Fiber Distributed Data Interface’ for faster network connectivity via optical fiber cables and copper cables.