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This article will explain in detail which types of nodes are concerned, and the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

1. The wide area network, which covers a range from hundreds to thousands of kilometers, is a remote network used in an industry or professional system, not the public Internet.

2. Local area network is the most widely used network, and almost every unit has a local area network.

Local area network

A local area network is naturally a regional network formed in a local area, which is characterized by a limited distribution area, ranging from large to small, as large as the connection between a building and adjacent buildings, and as small as the connection between offices. Compared with other networks, local area network itself has faster transmission speed, more stable performance, simple framework, and is closed, which is the reason why many organizations choose. The composition of the local area network itself is generally composed of computer equipment, network connection equipment and network transmission media, in which the computer equipment includes servers and workstations, and the network connection equipment includes network cards, hubs and switchs. simply speaking, the network transmission medium is the network cable, which is composed of coaxial cable, twisted pair and optical cable.

A local area network is a private network, usually in or near a building, such as a home, office, or factory. Local area networks are widely used to connect personal computers and consumer electronic devices so that they can share resources and exchange information. When Lans are used in companies, they are called enterprise networks.

Local area network connects all kinds of computers, external devices and databases in a certain area to form a computer communication network, and connects with local area networks or databases in other places through special data lines to form a wider range of information processing system. Through the network transmission medium, the local area network connects network servers, network workstations, printers and other network interconnected devices to achieve communication services such as system management files, sharing application software, office equipment, sending work schedules and so on. The local area network is a closed network, which can prevent information leakage and external network virus attacks to a certain extent, and has high security, but once events such as hacker attacks occur, it is very likely to lead to the paralysis of the local area network as a whole. all the work in the network can not be carried out, and even leak a large number of company secrets, causing a heavy blow to the development of the company. In 2017, the State promulgated the Network Security Law of the people's Republic of China, which formally came into effect on June 1. It made clear provisions on network security and information security from a legal point of view, and put forward corresponding requirements for network operators and users to improve the security of network use.

Wide area network

When the distance of a hub is exceeded in an area, it must be connected through a router. This type of network is called the wide area network. If there are North, Central, South and other branches, or even overseas branches, these branches are connected by special line, which is called "wide area network".

The transmission medium of the wide area network is mainly using telephone lines or optical fiber, and the ISP operators connect the enterprises. These lines are pre-buried under the road by the ISP operators. Because the project is huge, the maintenance is not easy, and the bandwidth can be guaranteed, so the cost will be more expensive.

Generally referred to as the Internet is a public wide area network, the cost of the public wide area network will be lower, for a cheaper online environment, but compared with the wide area network, there is no way to manage bandwidth, take the public network system, any section of bandwidth can not be guaranteed.

About which types of nodes are shared here, I hope the above content can be helpful to you and learn more knowledge. If you think the article is good, you can share it for more people to see.

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