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NetWorking - 1619 - BTEC, Essays (university) of Network Programming

Greenwich University (GU)Network Programming

NetWorking - 1619 - BTEC - Course 2020

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2019/2020

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Higher Nationals in Computing
Unit 2: Networking Assignment
Learner’s name: VU HOAI THAO MY
ID: GCS190634
Class: GCS0805_PPT
Subject code: 1619
Assessor name: PHAN MINH TAM
Assignment due: Assignment submitted:
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Higher Nationals in Computing

Unit 2: Networking Assignment

Learner’s name: VU HOAI THAO MY

ID: GCS

Class: GCS0805_PPT

Subject code: 1619

Assessor name: PHAN MINH TAM

Assignment due: Assignment submitted:

ASSIGNMENT FRONT SHEET

Qualification BTEC Level 5 HND Diploma in Computing

Unit number and title Unit 2: Networking

Submission date Date Received 1st submission

Re-submission Date Date Received 2nd submission

Student Name Vu Hoai Thao My Student ID GCS

Class GCS0805_PPT^ Assessor name Phan Minh Tam

Student declaration I certify that the assignment submission is entirely my own work and I fully understand the consequences of plagiarism. I understand that making a false declaration is a form of malpractice.

Student’s signature My

Grading grid

P1 P2 P3 P4 P5 P6 P7 P8 M1 M2 M3 M4 D1 D2 D

ASSIGNMENT BRIEF

Qualification BTEC Level 5 HND Diploma in Computing

Unit number Unit 2: Networking

Assignment title Networking Infrastructure

Academic Year

Unit Tutor TamPM

Issue date Submission date

IV name and date Khoa Canh Nguyen, Nhung, Michael Omar 9th/01/

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.

Unit Learning Outcomes

LO1: Examine networking principles and their protocols.

LO 2: Explain networking devices and operations.

LO3: Design efficient networked systems.

LO4: Implement and diagnose networked systems.

Assignment Brief

You are employed as a Network Engineer by Nguyen Networking Limited, a high-tech networking solution development company, which have branches in Ho Chi Min City, Hanoi, Da Nang and Can Tho. The company has been contracted to implement a networking project from a local educational institute. The specification of the project is given below: People: 200 students, 15 teachers, 12 marketing and administration staff, 5 higher managers including the head of academics and the programme manager, 3 computer network

including a blueprint of your LAN.

  1. Justify your choice of devices for your network design.
  2. Produce a test plan to evaluate this design for the requirements of bandwidth and cost constraints as per user specifications.
  3. Justify the security requirements and quality of services needed for selection of accessories.
  4. Suggest a maintenance schedule to support the networked system.

Part 3 Implement test and diagnose networked systems

  1. Implement a networked system based on your prepared design.
  2. Conduct verification with e.g. Ping, extended ping, trace route, telnet, SSH, etc.
  3. Record the test results and analyze these against expected results.
  4. Investigate what functionalities would allow the system to support device growth and the addition of communication devices.
  5. Discuss the significance of upgrades and security requirements in your recommendations.
ASSESMENT CRITERIA

Learning Outcomes and Assessment Criteria

Pass Merit Distinction

LO1 Examine networking principles and their protocols

LO1 & 2

D1 Considering a given scenario, identify the topology protocol selected for the efficient utilization of a networking system.

P1 Discuss the benefits and constraints of different network types and standards.

P2 Explain the impact of network topology, communication and bandwidth requirements.

M1 Compare common networking principles and how protocols enable the effectiveness of networked systems.

LO2 Explain networking devices and operations

P3 Discuss the operating principles of networking devices and server types.

P4 Discuss the inter-dependence of workstation hardware with relevant networking software.

M2 Explore a range of server types and justify the selection of a server, considering a given scenario regarding cost and performance optimisation.

LO3 Design efficient networked systems

P5 Provide a logical/physical design of the networked system with clear explanation and addressing table.

P6 Evaluate the design to meet the requirements.

M3 Install and configure network services and applications on 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 analyse test results against expected results.

M4 Recommend potential enhancements for the networked systems.

D3 Use critical reflection to evaluate own work and justify valid conclusions.

P4. Discuss the inter-dependence of workstation hardware with relevant

P5 Provide a logical/physical design of the networked system with clear

P6 Evaluate the design to meet the requirements.

M2 Explore a wide range of server types and justify server selection, considering

  • I. What is network? standards.
  • II. Network type:
      1. Benefit of the network:
      • 1.1. LAN:
        • 1.1.1. Characteristic of LAN: ......................................................................................
        • 1.1.2. Advantages of LAN: .........................................................................................
        • 1.1.3. Disadvantages of LAN: .....................................................................................
      • 1.2. WAN:
        • 1.2.1. Characteristic of WAN: ....................................................................................
        • 1.2.2. Advantages of WAN: .......................................................................................
        • 1.2.3. Disadvantages of WAN: ...................................................................................
      • 1.3. MAN:
        • 1.3.1. Characteristic of MAN: ....................................................................................
        • 1.3.2. Advantages of MAN: .......................................................................................
        • 1.3.3. Disadvantages of MAN: ...................................................................................
      1. Constraint of the network:
  • III. Protocol and Standards:
      1. Network protocol definition:
      1. Function of the protocol:
      1. List of some protocols:
  • 3.1. TCP/IP:
    • 3.1.1. What are IP & TCP? .........................................................................................
  • 3.2. ICMP:
    • 3.2.1. What is the Internet Control Message Protocol (ICMP)? ..................................
    • 3.2.2. What is ICMP Used for? ...................................................................................
  • 3.3. DNS:
    • 3.3.1. What is DNS? ...................................................................................................
    • 3.3.2. How does DNS work?.......................................................................................
    • 3.3.3. There are 4 DNS servers involved in loading a webpage: ................................. - resolver? .......................................................................................................... 3.3.4. What’s the difference between an authoritative DNS server and a recursive DNS
      • 3.3.4.1. Recursive DNS resolver: ...........................................................................
      • 3.3.4.2. Authoritative DNS server: ........................................................................
    • 3.3.5. What are the steps in a DNS lookup? ...............................................................
      • 3.3.5.1. The 8 steps in a DNS lookup: ....................................................................
    • 3.3.6. What is a DNS resolver?...................................................................................
    • 3.3.7. What are the types of DNS Queries? ................................................................
      • 3.3.7.1. 3 types of DNS queries: ............................................................................
    • 3.3.8. What is DNS caching? What does DNS caching occur? ....................................
      • 3.3.8.1. Browser DNS caching: ..............................................................................
      • 3.3.8.2. Operating system (OS) level DNS caching: ................................................
      • 3.3.8.3. Recursive resolver DNS caching: ...............................................................
  • 3.4. HTTP:
    • 3.4.1. What is HTTP? .................................................................................................
    • 3.4.2. What’s in an HTTP request? .............................................................................
      • 3.4.2.1. What’s an HTTP method? .........................................................................
      • 3.4.2.2. What are HTTP request headers? .............................................................
      • 3.4.2.3. What’s in an HTTP request body? .............................................................
        • 3.4.3. What’s in an HTTP response? ..........................................................................
          • 3.4.3.1. What’s an HTTP status code? ...................................................................
          • 3.4.3.2. What are HTTP response headers? ...........................................................
          • 3.4.3.3. What’s in an HTTP response body? ...........................................................
        • 3.4.4. Can DDoS Attacks Be Launched Over HTTP? ....................................................
  • I. Network topology definition: P2. Network topology & communication and Bandwidth requirements
  • II. Discuss the Impact of topology:
      1. Definition: Physical & Logical Topology:
      1. Examples of topology with diagrams:
      • 2.1. Types of network topologies:
        • 2.1.1. Bus Network Topology: ....................................................................................
        • 2.1.2. Star Network Topology: ...................................................................................
        • 2.1.3. Mesh Network Topology:.................................................................................
          • 2.1.3.1. Full Mesh Topology: .................................................................................
          • 2.1.3.2. Partial Mesh Topology: ............................................................................
        • 2.1.4. Ring Network Topology: ..................................................................................
        • 2.1.5. Hybrid Network Topology: ...............................................................................
        • 2.1.6. Tree Network Topology : ..................................................................................
  • III. Communication and Bandwidth:
      1. Define commutation in terms of networking:
      1. Rules of communication:..................................................................................
      • 2.1. The Rules establishing the rules:
      • 2.2. The Rules message Encoding:
      • 2.3. The Rules Message Formatting and Encapsulation:
      • 2.4. The Rules Message Size:
      • 2.5. The Rules Message Timing:
      • 2.6. The Rules Message Delivery Options:
      1. Bandwidth:.......................................................................................................
      • 3.1. What is bandwidth?
      • 3.2. What is Bandwidth Limit?
      • 3.3. How to estimate the Bandwidth of web hosting:
      • 3.4. What is bandwidth latency? How to fix?
  • I. Discuss 1 or 2 operating principles of a selected network device: P3 Discuss the operating principles of networking devices and server types.
  • II. List network devices:
      1. What are network devices?
      1. Types of network devices:
      • 2.1. Hub:
      • 2.2. Switch:
      • 2.3. Router:
      • 2.4. Bridge:
      • 2.5. Gateway:
      • 2.6. Modem:
      • 2.7. Repeater:
      • 2.8. Access Point:
      • 2.9. Conclusion:
  • III. List server types:
      1. Application Servers:
      1. Client Servers:
      1. Collaboration Servers:
      1. FTP Servers:
      1. List Servers:
      1. Mail Servers:
      1. Open Source Servers:
      1. Proxy Servers:
      1. Real-Time Communication Servers:
    • 10.Server Platforms:
    • 11.Virtual Servers:.................................................................................................
    • 12.Telnet Servers:
    • 13.Web Servers:
      • 13.1. Exchange Server:
      • 13.2. Lync Server:
      • 13.3. SharePoint Server:
      • 13.4. SQL Server:
      • 13.5. Windows Server:
  • I. Explain what is meant by interdependencies: networking software.
      1. What is Interdependence?
      1. What Does Interdependence Mean?
      1. Interdependence Example:
  • II. Define workstation hardware:
      1. What is workstation?
      1. Advantages of workstations over conventional computers:
      1. Components of the workstation:
      • 3.1. CPU (Intel CPU series only):
      • 3.2. Mainboard:
      • 3.3. RAM (Random Access Memory):
      • 3.4. Graphic card:................................................................................................
      • 3.5. Hard Drive:...................................................................................................
      • 3.6. Screen:
      • 3.7. Keyboard and mouse:
  • III. Define networking software: - network software: IV. Discuss and explain the different points of the workstation hardware with the
  • I. Explain the difference between logical and physical design: explanation and addressing table.
  • II. Discuss and explain the USER Requirement for the design
  • III. Provide a logical design of the network base on user requirement - connectivity test etc.) I. Provide test plan (Screen shot of evidence of test such as ping test –
    • I. Show evidence of a working network you’ve design P7 Implement a networked system based on a prepared design.
  • II. Show the implemented system - 1. Ping from PC student 1 to PC staff 2: - 2. Ping from PC student 1 to Sever0: - 3. Ping from PC student 5 to PC staff 4: - 4. Ping from Lap student 1 to PC student 5: - 5. Ping from Lap student 2 to Lap staff 1:
    • I. Provide a step by step configuration of network devices in the network P8 Document and analyze test results against expected results.
  • II. Test results - efficient use of the network: I. Compare network principles and explain how network protocols allow for - 1. The same between TCP and UDP: - 2. The different between TCP and UDP:............................................................... - 2.1. TCP: - 2.1.1. Reliability:........................................................................................................ - 2.1.2. Speed:.............................................................................................................. - 2.1.3. Best option to use: ........................................................................................... - 2.2. UDP: - 2.2.1. Reliability:........................................................................................................ - 2.2.2. Speed:.............................................................................................................. - 2.2.3. Best option to use: ...........................................................................................
  • I. Factors that help you choose the best server: a certain situation related to cost and performance optimization.
      1. Choose Linux or Window?
      1. Supplier CPU and RAM figures:
      1. Consider bandwidth:
      1. Consider security factors:
      1. Ask the provider for a service trial:
  • II. Some suggestions to help optimize costs:
      1. Have a clear vision and strategy:
      1. You need the advice of the experts:
      1. Database consolidation and optimization:
      1. Data classification:...........................................................................................
      1. Don't choose a cheap host:
      1. Periodically test and evaluate server performance:
  • III. How to choose a server:
  • REFERENCE

P a g e | 1

ASSIGNMENT 1 ANSWERS

P1 Discuss the benefits and constraints of different network types and

standards.

I. What is network?

o A computer network is a group of computers that use a set of common communication protocols over digital interconnections for the purpose of sharing resources located on or provided by the network nodes. The interconnections between nodes are formed from a broad spectrum of telecommunication network technologies, based on physically wired, optical, and wireless radio- frequency methods that may be arranged in a variety of network topologies.

o The nodes of a computer network may be classified by many means as personal computers, servers, networking hardware, or general purpose hosts. They are identified by hostnames and network addresses. Hostnames serve as memorable labels for the nodes, rarely changed after initial assignment. Network addresses serve for locating and identifying the nodes by communication protocols such as the Internet Protocol.

o Computer networks may be classified by many criteria, for example, the transmission medium used to carry signals, bandwidth, communications protocols to organize network traffic, the network size,

P a g e | 3

 A Local Area Network (LAN) is a group of computer and peripheral devices which are connected in a limited area such as school, laboratory, home, and office building. It is a widely useful network for sharing resources like files, printers, games, and other application. The simplest type of LAN network is to connect computers and a printer in someone's home or office. In general, LAN will be used as one type of transmission medium.  It is a network which consists of less than 5000 interconnected devices across several buildings.

  • WAN:

 WAN (Wide Area Network) is another important computer network that which is spread across a large geographical area. WAN network system could be a connection of a LAN which connects with other LAN's using telephone lines and radio waves. It is mostly limited to an enterprise or an organization.

P a g e | 4

- MAN:

 A Metropolitan Area Network or MAN is consisting of a computer network across an entire city, college campus, or a small region. This type of network is large than a LAN, which is mostly limited to a single building or site. Depending upon the type of configuration, this type of network allows you to cover an area from several miles to tens of miles.

1. Benefit of the network:

1.1. LAN:

1.1.1. Characteristic of LAN:

o Here are important characteristics of a LAN network:

  • It is a private network, so an outside regulatory body never controls it.
  • LAN operates at a relatively higher speed compared to other WAN systems.
  • There are various kinds of media access control methods like token ring and INTERNET.

1.1.2. Advantages of LAN: