A.There are three types of computer networks:
1) LAN-local area network.
2)MAN-metropolitan area network.
3)WAN-(wide area network).
1.LAN- (local area network) is a group of computers connected together and are within
a small room or building is called local area network.In a LAN ideally computers are connected using network cables(copper wires connected with RJ45 connectors),with
the help of network device called as switch.A small home network where computers,mobiles,televisions connected to wifi(wireless access point) is also called as LAN network.
2)MAN- (Metropolitan area network) is a network which is spreaded(spanned) across a big city.
Example:Cable TV network(This network is ideally built using co-axial cables).
3)WAN- (wide area network), is a network which is spreated acrossn countries and is beyond any geographical limits.
Example:internet(This network use both LAN and MAN networks and is established using high speed technology like optical fiber).