1, WAN: It is a long-distance network connecting computers in local area networks or metropolitan area networks in different regions.
2. LAN: It is a regional network composed of local areas with limited distribution area.
1, 10,000: it spans a large physical range, covering from tens of kilometers to thousands of kilometers. It can connect many regions, cities and countries, or span several continents and provide long-distance communication to form an international long-distance network.
2. Local area network: The coverage of local area network is within several kilometers of Fiona Fang, which is characterized by convenient installation, cost saving and convenient expansion.