The service modes that WAN can provide include: connection-oriented service mode and connectionless service mode. A wide area network is a remote network that connects computers in local area networks or metropolitan area networks in different areas for communication. The transmission media of WAN are mainly telephone lines and optical fibers.
The service modes that wide area networks can provide include: connection-oriented service mode and connectionless service mode.
Introduction to relevant knowledge:
Wide Area Network (English: Wide Area Network, abbreviated as WAN), also known as external network and public network, is a computer communication link that connects local area networks or metropolitan area networks in different areas Remote network. Usually spans a large physical range, covering a range from tens to thousands of kilometers. It can connect multiple regions, cities and countries, or span several continents and provide long-distance communications, forming an international network. remote network.
WAN is not the same as the Internet.
The transmission medium of WAN mainly uses telephone lines or optical fibers, and ISP operators connect enterprises. These lines are pre-buried under the road by ISP operators. Because the project is huge, maintenance is difficult, and the bandwidth is It can be guaranteed, so it will be more expensive in terms of cost.
The Internet generally refers to a public wide area network. The cost of a public wide area network will be lower and it is a cheaper online environment. However, compared with a wide area network, it cannot be managed. Bandwidth, using a public online system, the bandwidth of any section cannot be guaranteed.
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