Local area network & Metropolitan area network
Local area network (LAN)The term “local area network” is commonly used to describe a network of devices in a limited area (a house, office, building…). This type of network is usually capable of achieving high data transfer rate (up to 10 Gbps!) at low cost.
Some of the most popular LAN technologies are Ethernet, Token Ring and FDDI. Most LAN networks use TCP/IP to communicate. Twisted-pair cabling is usually used in a LAN.
Examples of this type of network are a small office network inside a single building or your home network.