STRATEGIC NETWORK OPERATION :: essays research papers

Anyone whos predominate a cyberspace operations group knows the frustration that accompaniesmanagement inquiries about our network strategy. To be successful, a strategicnetwork plan must define the services the network will offer the line operations of thebusiness.Network, in estimator science, techniques, carnal connections, and computerprograms used to link two or more computers. Network users are able to share files,printers, and other resources send electronic messages and run programs on othercomputers. A network has three layers of components application software, networksoftware, and network hardware. Application software consists of computer programsthat interface with network users and permit the share of information, such as files,graphics, and video, and resources, such as printers and disks.Network software consists of computer programs that establish protocols, orrules, for computers to talk to one another. These protocols are carried out by moveand receiving for matted instructions of data called packets. Protocols make logicalconnections between network applications, direct the movement of packets through thephysical network, and minimize the possibility of collisions between packets sent at thesame time. These are some of the different types of Network software Appletalk,Arpanet, Bitnet, CWIS, Ethernet, IBM Token Ring netwrok, Internet, LAN, andUSENET. Also Class A, B, & C network refer to the different types of subnet protocol. local anesthetic Area Networks(LANs), which connect computers separated by short distances,such as in an office or a university campus, commonly use bus, star, or glory topologies.Wide area networks (WANs), which connect distant equipment across the country orinternationally, often use special leased telephone lines as point-to-point links, and is thebiggest network.When computers share physical connections to transmit information packets, a setof Media Access Control ( mac) protocols are used to forfeit informa tion to flowsmoothly through the network. An efficient MAC protocol ensures that the transmissionmedium is not idle if computers have information to transmit. It also prevents collisionsdue to simultaneous transmission that would waste media capacity. MAC protocols alsoallow different computers fair access to the medium.One type of MAC is Ethernet, which is used by bus or star network topologies. AnEthernet-linked computer first checks if the shared medium is in use. If not, thecomputer transmits. Since two computers can both sense an idle medium and sendpackets at the same time, transmitting computers continue to admonisher the sharedconnection and stop transmitting information if a collision occurs. Ethernet can transmitinformation at a rate of 10 Mbps.The approximately significant - and successful - encroachment occurred when switchedEthernet devices appeared on the scene.