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ASSIGNMENT FRONT SHEET
Qualification BTEC Level 5 HND Diploma in Computing Unit number and title Unit 2: Networking Infrastructure Submission date 28/4/2022 Date Received 1st submission 28/4/ Re-submission Date Date Received 2nd submission Student Name Mai Huu Nam Student ID BS Class PBIT170101 Assessor name Đỗ Phi Hưng Student declaration I certify that the assignment submission is entirely my work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice. Student’s signature Mai Huu Nam Grading grid P1 P2 P3 P4 P5 P6 P7 P8 M1 M2 M3 M4 D1 D2 D
Submission format Part 1 The submission is in the form of an individual written report. This should be written in a concise, formal business style using single spacing and font size 12. You are required to make use of headings, paragraphs, and subsections as appropriate, and all work must be supported with research and referenced using the Harvard referencing system. Please also provide a bibliography using the Harvard referencing system. The recommended word limit is 2,000–2,500 words, although you will not be penalized for exceeding the total word limit. Part 2 The submission is in the form of an individual evidence portfolio. ● A LAN design plan and blueprint and justification document. ● A fully completed test plan including an evaluation of results and recommendations for improvements to LAN. ● A proposed and justified maintenance schedule. Part 3 ● Evidence of an implemented network. You are required to make use of headings, paragraphs, subsections, and illustrations as appropriate, and all work must be supported with research and referenced using the Harvard referencing system.
Part 1 You will need to produce a report that includes the following:
- An introduction to provide an overview of your report.
- Benefits and constraints of different types of networks and networking standards.
- The impact of network topology, speed of communication, and bandwidth requirements.
- Effectiveness of networking systems.
- Discussion on operating principles of networking devices and server types and networking software.
- Discuss the relationship of workstation hardware with networking software.
- Explore a range of server types and justify the selection of a server, considering a given scenario regarding cost and performance optimization.
- For the given specification, identify the topology protocol to efficiently utilize a networking system. The CEO Mr. Nguyen is happy with your first report and now he has asked you to analyze the specification from the institution, as given earlier. You need to design and implement the networking project within a given timeframe: Part 2 Design efficient networked systems
- Prepare a written step-by-step plan of how you are going to design a Local Area Network including a blueprint of your LAN.
- Justify your choice of devices for your network design.
- Produce a test plan to evaluate this design for the requirements of bandwidth and cost constraints as per user specifications.
- Justify the security requirements and quality of services needed for the selection of accessories.
- Suggest a maintenance schedule to support the networked system. Part 3 Implement test and diagnose networked systems
- Implement a networked system based on your prepared design.
- Conduct verification with e.g. Ping, extended ping, traceroute, telnet, SSH, etc.
- Record the test results and analyze these against expected results.
- Investigate what functionalities would allow the system to support device growth and the addition of communication devices.
- Discuss the significance of upgrades and security requirements in your recommendations.
P5 Provide a logical/physical design of the networked system with a clear explanation and addressing table. P6 Evaluate the design to meet the requirements. M3 Install and configure network services and applications of your choice. D2 Design a maintenance schedule to support the networked system. LO4 Implement and diagnose networked systems P7 Implement a networked system based on a prepared design. P8 Document and analyze test results against expected results. M4 Recommend potential enhancements for the networked systems. D3 Use critical reflection to evaluate your work and justify valid conclusions.
Introduction
Introduce the project and explain what the project is all about Explain the problems that require an address and give solutions to the problems Talk about the important parts of the assignment you will address I. Discuss the benefits and constraints of different network types and standards (P1).
1. Define network: Networks are nothing new and, in essence, have existed almost since people could communicate. All human networks are social networks; think about the role of families, tribes, and churches, and later, of guilds, clubs, societies, etc. It is only more recently that we have begun to identify their uses for business, career, and personal development. 2. Network type (MAN, WAN, LAN, etc.) LAN: LAN or Local Area Network connects network devices in such a way that personal computers and workstations can share data, tools, and programs. The group of computers and devices are connected by a switch, or stack of switches, using a private addressing scheme as defined by the TCP/IP
impacted. ● WAN: WAN or Wide Area Network is a computer network that extends over a large geographical area, although it might be confined within the bounds of a state or country. A WAN could be a connection LAN connecting to other LANs via telephone lines and radio waves and may be limited to an enterprise (a corporation or an organization) or accessible to the public. The technology is a high speed and relatively expensive. Picture 2 WAN o The benefit of WAN: WAN covers a larger geographical area. Hence business offices situated at longer distances can easily communicate.
- Like LAN, it allows sharing of resources and application software among distributed workstations or users.
- The software files are shared among all the users. Hence all will have access to the latest files. This avoids the use of previous versions by them.
- Organizations can form their global integrated network through WAN. Moreover, it supports global markets and global businesses.
- The emergence of IoT (Internet of Things) and advanced wireless technologies such as LAN or LAN- Advanced have made it easy for the growth of WAN-based devices. Messages can be sent very quickly across the globe with the help of applications such as WhatsApp, Facebook messenger, etc. o The constraint of WAN: Initial investment costs are higher.
- It is difficult to maintain the network. It requires skilled technicians and network administrators.
- There are more errors and issues due to wide coverage and the use of different technologies. Often it requires more time to resolve issues due to the involvement of multiple wired and wireless technologies.
- It has lower security compared to LAN and MAN due to wider coverage and the use of more technologies.
- Security is a big concern and requires the use of firewall and security software/protocols at multiple points across the entire system. This will avoid the chances of hacking by intruders. ● MAN: MAN or Metropolitan area Network covers a larger area than that of a LAN and a smaller area as compared to WAN. It connects two or more computers that are apart but reside in the same or different cities. It covers a large geographical area and may serve as an ISP (Internet Service Provider). MAN is designed for customers who need high-speed connectivity. Speeds of MAN range in terms of Mbps. It’s hard to design and maintain a Metropolitan Area Network. Picture 3 MAN
- Conceptual models e.g. OSI model, TCP/IP model; -Types of Standards : Standards are of two types: +De Facto Standard +De Jure Standard.
- De Facto Standard: The meaning of the work ‘’ De Facto ‘’ is. “By Fact” or “by Convention”. +These are the standards that have not been approved by any Organization but have been adopted as Standards because of their widespread use. Also, sometimes these standards are often established by Manufacturers.
- De Jure StanDard: The meaning of the word “De Jure” is “By Law” or “By Regulations”.
- Thus, these are the standards that have been approved by officially recognized bodies like ANSI, ISO, IEEE, etc. These are the standard that is important to follow if it is required or needed. 4. Network protocol definition A network protocol is a set of established rules that dictate how to format, transmit and receive data so that computer network devices -- from servers and routers to endpoints -- can communicate, regardless of the differences in their underlying infrastructures, designs, or standards. ● List some protocols: TCP/IP, HTTP, DNS, ICMP
- TCP: As described above, TCP is a protocol in the Transport layer that ensures reliable data delivery. TCP is used with IP and these two protocols are often referenced together as TCP/IP. ─ HTTP: Hypertext Transfer Protocol (HTTP) is the foundation of the World Wide Web - the Internet that most people
use every day. ● List some standard organizations and standards names -International Telecommunication Union, or ITU; -Institute of Electrical and Electronics Engineers, or IEEE; -Internet Engineering Task Force, or IETF;
II. Network topology & communication and Bandwidth requirements (P2)
1. Network topology definition. A network topology is the arrangement of a network, including its nodes and connecting lines. There are two ways of defining network geometry: the physical topology and the logical (or signal) topology. 2. Discuss the Impact of topology ● Definition of Physical Topology: a network is the actual geometric layout of workstations. There are several common physical topologies, as described below and as shown in the illustration. ● Definition of Logical Topology: refers to the nature of the paths the signals follow from node to node. In many instances, the logical topology is the same as the physical topology. But this is not always the case. For example, some networks are physically laid out in a star configuration, but they operate logically as bus or ring networks. Examples of topology with diagrams: ● Mesh:
Picture 6 Star ● Bus:
Picture 7 Bus ● Ring:
Picture 9 Tree ● Hybrid:
Picture 10 Hybrid
3. Communication and Bandwidth: - Define commutations in terms of networking: Network communication, or internetworking, defines a set of protocols (that is, rules and standards) that allow application programs to talk with each other without regard to the hardware and operating systems where they are run. Internetworking allows application programs to communicate independently of their physical network connections. - Rules of communication: - Know your audience. - Timing is everything.
