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1. networks refer to the "three networks", that is, telecommunications networks, cable TV networks, and computer networks.2. A network is composed of several nodes and links connecting
located in the consortium center of the WAN, therefore, high packet forwarding and switching capabilities, sufficient access port types and quantities, and strong management and control capabilities are required. Therefore, the configuration of two Cisco 3662 routers in the Information Center of the municipal Bureau not only serves as a backup, but also ensures load balancing. It adopts advanced architecture design and high Routing Capability of the slave board, high Cost Performance and compre
Follow these steps to check debugging:1. Check and enable the WLAN configuration service.Find the "computer" icon on the desktop, right-click-manage-services and applications-services, and find the "WLAN AutoConfig" service on the right. If the current status is "disabled ", right-click to enable (if not, temporarily uninstall the anti-virus software currently installed on your comput
Abstract: With the development of computer networks, it brings resources sharing to people. At the same time, there are great security risks in data security. The TCP/IP protocol is widely used for communication in today's networks. This article analyzes computer network sec
One, the main three kinds of network(1) Telecommunications Network (telephone network), responsible for voice communications, that is, call, answer the phone.(2) Cable TV network, mainly provide video services.(3) computer network
network protocol is a collection of communication rules between all the devices on the network (network servers, computers and switches, routers, firewalls, etc.), which specifies the format to be used for communication and the meaning of these formats. Most networks have a layered architecture, each layered on top of
Computer network summary 1. p110 indicates the MAC frame format in V2 format. The data field (that is, IP packet) length ranges from 46 bytes to 1500 bytes, which is defined for Ethernet, "1500 bytes" is also called the Ethernet MTU (maximum transmission unit, that is, Ethernet limits the maximum length of IP datagram to 1500 bytes ). P185 indicates the IP datagram format. The "total length field" indicate
In recent years, along with the development of computer networks and communication technology, it not only brings great convenience to people's lives, but also enables people to enjoy more material and culture. At the same time, network security threats are becoming more and more serious, such as hacker attacks, data theft, and virus release. Although we are also
: Class 192.168.0.1-192.168.255.2545. How to view the Windows host IP address with a command, how to view the Windows host MAC address with a command?Start-command prompt-run ipconfigView IP in Linux: Run Ifconfig directlyView MAC Address: Start-command prompt-run ipconfig/all.Day 021. What is the function of the computer network?Function of network: Data communi
With the rapid popularization of information technology, people gradually become dependent on networks. However, due to the vulnerability and complexity of network systems, network security threats will affect people's lives. Therefore, it is imperative to prevent and solve network security problems.
, which is widely used in various types of Internet access and various types of networks. The reason is simple, Nat not only solves the problem of LP address insufficiency, but also can effectively avoid attacks from outside the network, hiding and protecting the computer inside the network.One. DHCP protocolThe DHCP Dynamic Host Provisioning Protocol (PROTOCOL)
Chapter 1 Overview 1.How many stages can the development of computer networks be divided? What are the characteristics of each stage? A: The development of computer networks can be divided into the following three stages. (1)Terminal-orientedComputer Communication Network
and network services in the organization to the domain hierarchy, which can simply be understood as converting URLs to IP addresses. Domain name is a string of dots separated by a series of words or abbreviations, each domain name corresponds to a unique IP address, the Internet domain name and IP address is one by one corresponding to DNS is the server for domain name resolution. DNS naming is used in TCP/IP net
The purpose of establishing the network architecture In order to make communication between heterogeneous networks possible, in order to achieve a higher level of application, the network structure is easy to standardize, so the network architecture is established.OSI Network
For the following information, refer to "Computer Network (5th )".I. Development of Computer Networks 1. "Three networks": telecom network, cable TV network, and
network of large and small networks across the world is interconnected and communicated through routers, there are many problems to be solved: different addressing schemes, different maximum packet lengths, different timeout controls, different routing techniques, and so on.Because the needs of users are diverse, there is no single network with all the needs of
The current situation of computer network security and the Countermeasures take the main factors affecting the computer network security as a breakthrough, and focus on the Analysis and Prevention of various measures that are not conducive to the normal operation of computer
Router fault diagnosis is a comprehensive technology, which involves various aspects of network technology. Let's take a quick look at the basic concepts of networking and routers. First, computer network The development of computer network leads to various forms of connec
Chapter 6 data communication and computer network (Data communication, data transmission rate, bandwidth, modulation mode, etc. in the channel, mainly about computer networks) 1. What is a computer network? Simply put, a
Classification of IP addresses The whole internet is a single, abstract network. An IP address is a unique 32-bit identifier that is assigned to every interface on the Internet for every host (or router). The so-called classified IP address, that is, the IP address is divided into a number of fixed classes, each type of address is composed of two fixed-length fields, one of which is the network number N
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