Decision Support Systems Used in Network Hardware
How does data pass through the internet? If you said decision support systems, you are correct. In an indecisive world, network hardware devices uses decision support systems (DSS) to efficiently and effectively route data, in a local area network, with the least amount of errors and inconsistencies. Decision support systems are the brains behind network hardware, and would be near impossible for them to work without the intelligent core of each distinct DSS. There are a variety of network hardware devices: switches, hubs, and routers; and they all use algorithms/procedures to transfer data towards the correct destination. Although there are many more DSS related methods used to route traffic, this paper describes how these three devices use them and each of there functions. Other types of decision support systems that network hardware devices may use are firewall technology, network address translation, and filter tables, which are all described in this paper.
Network hardware is used in the first three layers of the OSI reference model. The OSI reference model is the Open Systems Interconnections standard and consists of seven layers that build from the wire. At the first layer, “the physical layer”, hubs maybe used for simple, inexpensive technology within a corporation. Hubs, when receiving data sent to it, sends that data too all network interface cards, or NICS on each computer. If the data is at its correct destination, the NIC to read the data, but if it is not, the data is discarded. Of course, this setting is much slower, because the other NICS are waiting for there turn, which is after the first message is delivered or timed out. Raymond R. Panko writes this about the waiting state a hub goes in when transmitting data: “This creates latency (delay), which grows as the number of stations grows. Another way of saying this is that the speed of the hub is shared. (Panko 108)” As, you can tell, hubs are simple, and don’t use more information than needed.
Switches, which are layer 2 devices, use decision based routing by storing NIC hardware addresses and port numbers on a table in the switch. By doing this, when data is received by the switch, it knows where the source was, and where the data needs to go. This allows for faster data transmission for all NICS that are connected, because it uses the swi...
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... mining tools are being used to uncover the congestion that slows network traffic down. With all these DSS type applications working together in harmony, the internet can be faster and safer to surf, than ever before.
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In this topology, all nodes are connected to a central device, usually a hub or a switch. Each connected device has a dedicated, point-to-point connection between the device and the hub. The star network topology is by far the most widely implemented topology in use today.
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Transmitting information using the Internet can be a little confusing to understand. As mentioned earlier, the Internet is a network of networks and there is a network protocol that allows computers electronically describe data (Scott's Newsletter). This protocol is called TCP/IP, Transmission Control Protocol/Internet Protocol. TCP/IP creates a packet-switched network that minimizes the chance of losing any data that ...
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Due to the demand for the internet to be fast, networks are designed for maximum speed, rather than to be secure or track users (“Interpol” par. 1). The adage of the adage.... ... middle of paper ... ...
The Internet is undoubtedly the most crucial technology of the modern world. It increases technology advancement and improve communication and transportation. The Internet is a global computer network providing a variety of information and communication services, consisting of organized networks using standard communication rules. While people think of the Internet as a good source of getting knowledge, there are many disadvantages associated to it.