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infm 350 computer networks assignment

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Added on  2019-10-18

infm 350 computer networks assignment

   Added on 2019-10-18

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STUDENT NAME: 22 OCTOBER, 2016INFM 350 COMPUTER NETWORKS ASSIGNMENT
infm 350 computer networks assignment_1
1.Define “communications network” and discuss such a network’s component parts. Relate these networks to general systems theory.Answer: the communication network can be defined as an inter-connection of the devices in which multiple devices which are connected to each other through the network send or receive messages to or from each other. Its components are client, server and the connection media. The server is the one which provides responses to the client queries and the client is the machine from which the query is sent. For example a local computer is client and Google acts as a server to answer the questions. The connection media are the wires and devices like router, ISP etc. through which the message travels from client to the server. All these together form a communication network. The network can be at a small scale like a LAN or even at a global network like World Wide Web which is the interconnection of the smaller networks, which form a larger network at the global level. The servers may be present anywhere in the network and the message is sent to them for via the connection media and then the servers responses back which are again sent back via connection media. In simple language we call then source and destination devices. These devices send message to the communication network, which follows certain rules to send the message through layer by layer of the network and then to the destination device. Same process is followed when message travels back from destination to the source. The network has multiple communication layers and different devices work on different layers. 1 | P a g e
infm 350 computer networks assignment_2
2.The speed of digital signals through various communications media is limited by the lawsof physics. Discuss some of the methods used to increase the throughput of communications channels.Answer: 3.Describe and discuss the importance of communications networking standards.Answer: as the word standard describes a set of rules of guidelines, the same way communications networking standards are certain rules and guidelines that have designedfor the network and device that run on it. They are important because when the messages travel from different layers of the network from one network to the other, and from one device to the other, it is necessary for it to follow certain rules so that the message is correctly delivered. Thus all layers work together following these standards all together. As we see that technology is changing, thus to keep up with it, the network is required to follow these standards. For example to send an image to receive one, http standard must be followed. 4.Define and compare the OSI and TCP/IP network reference models. How are these models related to networking communications standards? Answer: OSI and TCP/IP are both different models that have been designed for communication over the network. They have a framework in which certain rules have been defined for the device communication and access over the different layers through which the data2 | P a g e
infm 350 computer networks assignment_3

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