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出版Xoffencerpublication, 2024-04-18
主題Computers / Cybernetics
ISBN81195347009788119534708
URLhttp://books.google.com.hk/books?id=9YEnEQAAQBAJ&hl=&source=gbs_api
EBookSAMPLE
註釋A computer network is defined as a set of connected computers. All the hardware devices or computers on a network are called the nodes. The connection between computers can be wired or wireless, most commonly the Ether net cables are used or in the case of wireless connection are used through radio waves. All the connected computers can share the resources, like access to the Internet, printers, file servers, and others. A network is a multipurpose connection, which allows a single communication or multi communication. The computer networks are physically designed by the topologies, which is a technique of connecting computers. The most common topology used today is a star or collapsed ring. A network protocol called the Ethernet that is due to very successful. This set of protocol or network language, supports the Internet, Local Area Networks, and Wide Area Networks. Network Security: Network security consists of different policies and practices to stop and monitor unauthorized activities, access, misuses, modifications, or denial of a network and network-accessible resources. Only Network security will take away malicious program viruses if it’s activated. Network security involves the authorization (approval) of access to information during a network that is controlled by the network administrator. Users select or are allotted Determine the quality ID and Arcanum or different authenticating information that enables them access to information and programs among their authority. Network security covers a range of computer networks, each public and personal, that is utilized in everyday jobs; conducting transactions and communications among businesses, government agencies and people. Networks are often non-public, like among an organization, et al. which is receptive public access. Network security is concerned in organizations, enterprises, and different forms of establishments. It secures the network, similarly as protective and overseeing operations being done. The foremost common and easy approach of protective a network resource is by distribution it a novel name and a corresponding authentication.