After the LAN networking is completed, what is the key to determining the performance of the network

Related to the following 4 points:

1. The topology of the network.

2. The communication protocol of the network.

3. The transmission medium of the network.

4. The operating system of the network.

A local area network (LAN) is a group of computers that are interconnected by multiple computers in a certain area. Generally, it is within a radius of several thousand meters. LAN enables functions such as file management, application software sharing, printer sharing, scheduling within workgroups, e-mail and fax communication services, and more.

A LAN is closed and can consist of two computers in an office or thousands of computers in a company.

Local area network (LAN) is a computer communication network composed of various computers, external devices and databases connected to each other within a local geographical range (such as a school, factory and institution), generally within a radius of several kilometers. It can be connected with a remote local area network, database or processing center through a data communication network or a dedicated data circuit to form a large-scale information processing system. LAN enables functions such as file management, application software sharing, printer sharing, scanner sharing, scheduling within workgroups, e-mail and fax communication services, and more.

LANs are strictly closed. It can consist of a few or even thousands of computers in the office. The main technical elements that determine the LAN are:

Network topology, transmission media, and media access control methods.

The most important factors affecting the performance of the LAN are the performance of network equipment and the network topology.

But this is not the answer to this question, this question talks about what factors have the greatest impact on the performance of the network when the LAN has been established, that is, when the network equipment, protocol, and topology have been determined.

Performance is not the same as network throughput, but how to use the network well, so the answer is obviously the operating system.

Hehe, choose B, the protocol is the most important thing in the network.

Isn't the topology determined after the networking is completed?

Computer networks are classified according to the scope of their coverage, which can be divided into local area networks, metropolitan area networks, and wide area networks.

The key to network performance depends on several factors, including:

2.Latency: Latency refers to the time it takes for data to travel from the sender to the receiver. Lower latency can improve the responsiveness and real-time performance of the network.

3.Network topology: How the topology of the network is designed and laid out will also affect performance. A reasonable network topology can reduce the number of hops and delay of packet transmission, and improve transmission efficiency.

4.Network device performance: The performance of network devices such as switches, routers, and servers can also affect the performance of the overall network. Higher-performance devices can provide faster data processing and capacity.

5.Network security: Network security measures such as firewalls, access control, etc., will also have a certain impact on performance. A proper security strategy can protect your network from attacks, but too many security measures can impact network performance.

The main technical elements that determine the performance of the LAN are: network topology, transmission medium and media access control method.

LAN Transmission Medium:

The transmission media commonly used in LAN are coaxial cable, twisted pair, optical fiber, and wireless communication channels. In the past, coaxial cables were the best price-performance ratio.

At present, twisted pair is used as the transmission medium in the medium and high-speed local area network, optical fiber transmission is used in long-distance transmission, and wireless communication technology is used in the local area network with mobile sites.

The topology is as follows:

Star structure, a kind of structure, is currently the most commonly used in the local area network, and almost all of them are used in enterprise networks. The star network is almost exclusively for Ethernet (Ethernet) network, and it is named because the node devices of each workstation in the network are connected together through a network centralized device, and the nodes are distributed in a star shape.

Ring structure: The network form of this structure is mainly used in the token network, in which the devices are directly connected through cables, and finally form a closed loop, and the information sent by the entire network is transmitted in this ring, which is usually called this type of network"Token Ring"。

Bus type structure: this network topology is relatively simple, all equipment in the bus type is directly connected with the transmission medium called a common bus, this medium is generally coaxial cable, but now there are also optical cables as bus type transmission medium, such as ATM network, cable modem network and so on all belong to the bus type network structure.

Media and control method: The method of effectively allocating the frequency band of the transmission medium to each node on the network is called the media access control method. The media access control method is one of the most important basic technologies of the local area network, which has a decisive impact on the local area network architecture, working process and network performance.

Answer] :d Network Operating System (NOS) is the heart and soul of the network, and it is a special operating system that provides services to network computers. It works under a computer operating system, which allows the computer operation system to quietly increase the capabilities required for network operation.

The Xiangna network operating system runs on a computer called a server and is shared by computer users who are connected to the Internet, and such users are called customers.

Answer]: B network operating system is the core part of the computer network, just like the human brain, all the late performance of the operating system determines the quality of the computer network performance.

The key to determining the performance of a network application is the topology of the network.

Network topology refers to the physical layout of various devices that are interconnected with transmission, that is, how to connect computers and other devices in the network. The term sedan call is borrowed from geometry. A network topology is the shape of a network, or how physically connected it is.

There are many types of topologies that make up a network.

Network topology refers to the physical layout of various devices that are interconnected with transmission, that is, how to connect computers and other devices in the network. The topology diagram gives the network configuration and interconnection of network servers and workstations, and its structure mainly includes star structure, ring structure, bus structure, distributed structure, tree structure, network structure, honeycomb structure, etc.

The star structure is the oldest way to connect, and the ** that everyone uses every day belongs to this structure. The general network environment is designed as a star topology. Star nets are one of the most widely used network topologies.

The star structure refers to the network of workstations connected in a star pattern. The network has ** nodes, and other nodes (workstations, service brothers) are directly connected to ** nodes, and this structure is centered on ** nodes, so it is also called a centralized network.

Network Performance:

1. The web application is safe and reliable.

2. The network application and network response and delivery time show whether a large amount of processing, file contention, or excessive delay in disk or network access in a certain aspect of the application is up to the requirements.

3. Collect comprehensive analytics data and combine it for an end-to-end view of the application process and whether all devices involved in the data are qualified.