ITECH 6502 Data Communication Management Assignment 1

Data Communication

ITECH 6502 Data Communication Management

Assignment 1

This is the sample provided for the last year assignment at scenario named DVD AT Home

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Scenario A.Clearview Primary School

Scenario B.TV Your Way

Scenario C.Deer Park Secondary College

Scenario D.  Talk’s Cheap

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DVD AT HOME

Introduction
DVD at Home is an online DVD store. Customer can purchase and download or watch DVD online on company website and can rent as well which sent to customer by mail. DVD at home spread between two building, one involves shipping and receiving of rented DVDs and another is involving administration staff and equipments’ that supports the website and the online delivery of DVDs. In this proposal it is stated the equipments will be require to fulfil company’s requirements. The list of equipments includes information about the layer or layers at which each piece of works and a short discussion of possible problems that could arise with each piece of equipment. This discussion therefore relates equipment/software to the four layer model of networking and its relationship and relevance for troubleshooting networking problems.

Main Requirements

Main requirement is one Desktop computer for each staff member. There are 8 of staff members so we will need 8 Desktop PC and two more Desktops as risk management to prevent and breakdown in work because of any PC’s failure. All PC with a licensed Windows Vista operating system and Microsoft Office 2007 software in it. PC works on Presentation Layer of OSI model which provides independence from data representation (e.g., encryption) by translating between application and network formats. One web server which Supports Company’s website and stores users’ delivery order and other customer related information. Cables would be needed for connecting PC to web client server and other equipments such as printer, scanner or UPS sytems. DVD at home based on Internet service so security is priority when system is working online. And one IBM client server to inter connects both buildings and act in emergency as back- up server. Company’s all services are based on Internet so company needs high speed broadband services and fibre optic network between two building for fast interconnectivity. Company would be indeed of Network Adapter; is a computer hardware component that connects a computer to a computer network, a Repeater is an electronic device that receives a signal and retransmits it at a higher level and/or higher power, or onto the other side of an obstruction, so that the signal can cover longer distances. Network Hub device for connecting multiple twisted pair or fibre optic Ethernet devices together and making them act as a single network segment, Modem is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information.  Fibre media converters are simple networking devices that make it possible to connect two dissimilar media types such as twisted pair with fibre optic cabling. And for access internet in both building wifi is the solution for without wiring computers. Company will need fibre optics to interconnect web server and office server to all PC. Company is running a website for online order and contacting customers through their details online. In this area, company needs a solid internet security to provide protection for online transactions and customers personal details. Landline service and telephone devices for each desk, which act as inter communication and STD for contacting customers and other business calls as well. So these are the main requirements for DVD at home online services.

CULTURAL DISTANCE: HOW IS IT MEASURED AND HOW DOES IT IMPACT ON GLOBAL MARKETING BASED ON A RESEARCH OF THE CRISIS OF THE COCA-COLA COMPANY

Detailed Suggestions

DVD at home spread between two buildings so first need to assemble all 6 PC in shipping and receiving staff and 4 PC in Administration building which will costs $760 for each PC. All PC would be interconnecting with each other through a server in each building, which wills costs $2000. Company have two office servers which would be dividing into both building one in each costs $900 each. Those servers would be connecting each other so one network of DVD at home crates which spread across both building. Establishing a network would cost with cost of fibre optic $870. All PC should be installed with Windows Vista operating system and Microsoft office software in network costs $3000 of licence of operating system and office tool. Security for website and company network will installed in web client server and client server, which would be AVG Internet security cost for small sized business would be $1000. For secure online transaction PAY PAL is one the best option for website which costs $1 per transaction. Toshiba Printer and scanner for each building would costs $900 for each. Establishing a network of Landline service and telephone device for each desk costs $2000 with landline surcharge. In case of lost of electricity UPS systems and electricity generator would be necessary for keep running server and don’t get down any time costs $3000 for each building. Company is dealing with DVD of movies so company must have to take copyrights for renting DVDs and watching online from particular movie production companies. Ten Network adapters would be needed to assemble PCs in a network; two network modems would be needed for each building; One Fibre optic converter would be needed for network and all these equipments will costs $1000 to DVD at home.

Equipments and its working level with Trouble-Shooter

All PC and server networking will work on the Physical Layer one the OSI Model. The Physical Layer consists of the basic hardware transmission technologies of a DVD at home network. It is a fundamental layer underlying the logical data structures of the higher level functions in a DVD at home network. In case of break down or any error facing to use of PC, company would have two more back up PC to run and keep work on. Web server is also often generalized to describe a host that is deployed to execute one or more such programs. All data is stored on the web client server and other client server simultaneously, which generally have far greater security controls than most clients It works on the physical layer of OSI model and as the number of simultaneous client requests to a given server increases, the server can become overloaded to prevent overloading DVD at home will having two server so load of main server would be shifted to other client server. For providing service of online watching DVD movies Data Link Layer provides the functional and procedural means to transfer data between network entities and to detect and possibly correct errors that may occur in the Physical Layer. Both buildings are inter connected through client server in each building and creates a network. This network would works on  Network Layer provides the functional and procedural means of transferring variable length data sequences from a source web client server on one network to a destination customer on a different network, while maintaining the quality of service requested by the Transport Layer. Quality of service could be damaged by break down of any cable, which could be prevented by wifi or satellite network or Fibre optic cables. Online movie watching on DVD at home website would be done by Presentation Layer is responsible for the delivery and formatting of information to the application layer for further processing or display. It relieves the application layer of concern regarding syntactical differences in data representation within the end-user systems by flash movie player, real media player or windows media player on website. Website will be flexible to play any movie in any web browser for customer by three media player online so, no type of complain from customer comes. Security of client server and all PC in DVD at home company secured by AVG Internet security software preventing any virus coming through internet and other hacking and cracking attack from any user over internet. Internet Security would works on application layer as well but in host server only. Network Adapter implements the electronic circuitry required to communicate using a specific physical layer and data link layer standard such as Ethernet or token ring. This provides a base for a full network protocol stack, allowing communication among small groups of computers on the same Local Area network and large-scale network communications through routable protocols, such as Internet Protocols. Company would have ten of network adapters in which two are as back up for any break down. Main reason for purchasing hubs rather than switches was their price. A network device becomes active on any of the physical ports, the device attaches it to either the 10 Mbit/s segment or the 100 Mbit/s segment and boost the network speed. Broadband modems would be used for Internet connection, they use complex waveforms to carry digital data. They are more advanced devices than traditional dial-up modems as they are capable of modulating/demodulating hundreds of channels simultaneously. Many broadband modems include the functions of a router with Ethernet and Wifi ports and other features such as DHCP, NAT and firewall features.

UNIT 29 CREATIVE PATISSERIE