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This article mainly introduces the network hardware of the local area network, which is mainly included. The introduction in the article is very detailed and has certain reference value. Interested friends must read it!

The network hardware of local area network mainly includes server, workstation, network card and transmission medium; local area network can realize file management, application software sharing, printer sharing and other functions. In the process of use, by maintaining the network security of local area network, it can effectively protect the data security and ensure the normal and stable operation of local area network.

The network hardware of local area network mainly includes server, workstation, network card and transmission medium.

There are four levels in TCSEC: Level D is minimum protection, Level C is autonomous protection, Level D is mandatory protection, and Level A is verification protection.

The coverage of local area network is generally within a few kilometers, which has the characteristics of convenient installation, cost saving, convenient expansion and so on, so that it is widely used in various offices. The local area network can realize functions such as file management, application software sharing, printer sharing, etc. During use, by maintaining the network security of the local area network, the data security can be effectively protected, and the normal and stable operation of the local area network can be ensured.

A local area network is naturally an area network formed in a local area. Its characteristic is that its distribution area is limited, which can be large or small, from the connection between a building and adjacent buildings to the connection between offices. Compared with other networks, the local area network itself has faster transmission speed, more stable performance, simple framework and closed nature, which is also the reason why many organizations choose it. The local area network itself is composed of computer equipment, network connection equipment and network transmission medium, among which, computer equipment includes server and workstation, network connection equipment includes network card, hub and switch, and network transmission medium is simply network cable, which is composed of coaxial cable, twisted pair and optical cable.

A local area network is a Private Cloud that is located 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, enabling them to share resources and exchange information. When local area network are used in corporations, they are called enterprise networks.

A local area network connects various computers, external equipment and databases in a certain area to form a computer communication network, and connects with other local area network or databases through dedicated data lines to form a larger information processing system. The local area network connects network servers, network workstations, printers and other network interconnected devices through network transmission media to realize communication services such as system management files, sharing application software, office equipment, and sending work schedules. The local area network is a closed network, which can prevent information leakage and external network virus attack to a certain extent, and has high security. However, once hacker attack and other events occur, it is very likely to cause the whole local area network to be paralyzed, all work in the network cannot be carried out, and even a large number of company secrets are leaked, which will cause heavy damage to the development of the company. In 2017, the state promulgated the Network Security Law of the People's Republic of China, which came into force 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.

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