Unit 02- Networking 2020 Reworded PDF

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Higher Nationals Internal verification of assessment decisions – BTEC (RQF) INTERNAL VERIFICATION – ASSESSMENT DECISIONS Programme title HND in ComputingAssessor Internal VerifierUnit(s)Unit 02: NetworkingAssignment titleLAN Design & Implementation for VIDCOStudent’s name List which assessment c...

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Higher Nationals Internal verification of assessment decisions – BTEC (RQF) INTERNAL VERIFICATION – ASSESSMENT DECISIONS Programme title

HND in Computing

Assessor

Internal Verifier Unit 02: Networking

Unit(s) LAN Design & Implementation for VIDCO Assignment title Student’s name List which assessment Pass

Merit

criteria the Assessor has awarded. INTERNAL VERIFIER CHECKLIST Do the assessment criteria awarded match those shown in the assignment brief? Is the Pass/Merit/Distinction grade awarded justified by the assessor’s

Y/N Y/N

comments on the student work? Has the work been assessed accurately? Is the feedback to the student:

Y/N

Give details: • Constructive? • Linked to relevant assessment criteria?

Y/N

• Identifying opportunities for improved

Y/N

performance?

Y/N

• Agreeing actions? Y/N Does the assessment decision need amending?

Y/N

Distinction

Assessor signature

Date

Internal Verifier signature

Date

Programme

Leader

signature

(if

Date

required) Confirm action completed Remedial

action

taken Give details: Assessor signature Internal Verifier

Date

signature Programme

Date

Leader

Date

signature required)

(if

Higher Nationals - Summative Assignment Feedback Form Student Name/ID

M.A.M.Afri

Unit Title

Unit 02: Networking

Assignment

1

Assessor

Number Date Received Submission Date

1st submission Date Received

Re-submission

2nd submission

Date Assessor Feedback: LO1 Examine networking principles and their protocols. Pass, Merit & Distinction Descripts LO2 Explain networking devices and operations. Pass, Merit & Distinction Descripts LO3 Design

efficient

networked systems. Pass, Merit & Distinction Descripts LO4 Implement and diagnose networked systems. Pass, Merit & Distinction Descripts

Grade: Assessor Signature: Resubmission Feedback:

Date:

Grade: Assessor Signature: Internal Verifier’s Comments:

Date:

Signature & Date: * Please note that grade decisions are provisional. They are only confirmed once internal and external moderation has taken place and grades decisions have been agreed at the assessment board. Assignment Feedback Formative Feedback: Assessor to Student

Action Plan

Summative feedback

Feedback: Student to Assessor

Assessor

Date

signature Student signature

Pearson Higher Nationals in Computing

Unit 02: Networking Assignment 01

Date

General Guidelines

1. A Cover page or title page – You should always attach a title page to your assignment. Use previous page as your cover sheet and make sure all the details are accurately filled. 2. Attach this brief as the first section of your assignment. 3. All the assignments should be prepared using a word processing software. 4. All the assignments should be printed on A4 sized papers. Use single side printing. 5. Allow 1” for top, bottom , right margins and 1.25” for the left margin of each page. Word Processing Rules

1. The font size should be 12 point, and should be in the style of Time New Roman. 2. Use 1.5 line spacing. Left justify all paragraphs. 3. Ensure that all the headings are consistent in terms of the font size and font style.

4. Use footer function in the word processor to insert Your Name, Subject, Assignment No, and Page Number on each page. This is useful if individual sheets become detached for any reason. 5. Use word processing application spell check and grammar check function to help editing your assignment. Important Points:

1. It is strictly prohibited to use textboxes to add texts in the assignments, except for the compulsory information. eg: Figures, tables of comparison etc. Adding text boxes in the body except for the before mentioned compulsory information will result in rejection of your work. 2. Carefully check the hand in date and the instructions given in the assignment. Late submissions will not be accepted. 3. Ensure that you give yourself enough time to complete the assignment by the due date. 4. Excuses of any nature will not be accepted for failure to hand in the work on time. 5. You must take responsibility for managing your own time effectively. 6. If you are unable to hand in your assignment on time and have valid reasons such as illness, you may apply (in writing) for an extension. 7. Failure to achieve at least PASS criteria will result in a REFERRAL grade . 8. Non-submission of work without valid reasons will lead to an automatic RE FERRAL. You will then be asked to complete an alternative assignment. 9. If you use other people’s work or ideas in your assignment, reference them properly using HARVARD referencing system to avoid plagiarism. You have to provide both in-text citation and a reference list. 10. If you are proven to be guilty of plagiarism or any academic misconduct, your grade could be reduced to A REFERRAL or at worst you could be expelled from the course

Student Declaration

I hereby, declare that I know what plagiarism entails, namely to use another’s work and to present it as my own without attributing the sources in the correct form. I further understand what it means to copy another’s work.

1. I know that plagiarism is a punishable offence because it constitutes theft. 2. I understand the plagiarism and copying policy of Edexcel UK. 3. I know what the consequences will be if I plagiarise or copy another’s work in any of the assignments for this program. 4. I declare therefore that all work presented by me for every aspect of my program, will be my own, and where I have made use of another’s work, I will attribute the source in the correct way. 5. I acknowledge that the attachment of this document signed or not, constitutes a binding agreement between myself and Pearson, UK. 6. I understand that my assignment will not be considered as submitted if this document is not attached to the assignment.

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Higher National Diploma in Computing Assignment Brief Student Name /ID Number

00083957

Unit Number and Title

Unit 2: Networking

Academic Year

2020/21

Unit Tutor Assignment Title

LAN Design & Implementation for VIDCO -19

Issue Date Submission Date IV Name & Date

Submission format The submission should be in the form of an individual reportwritten 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 Harvard referencing system. Please also provide an end list of references using the Harvard referencing system. The recommended word count is 3,000–3,500 words for the report excluding annexures, although you will not be penalised for exceeding the total word limit. Unit Learning Outcomes:

LO1 Examine networking principles and their protocols.

LO2 Explain networking devices and operations.

LO3 Design efficient networked systems.

LO4 Implement and diagnose networked systems.

Assignment Brief and Guidance:

Case Study VIDCO-19 is a privately owned, well-known Software company located in Colombo. The Management of VIDCO-19 has purchased a 3 story building in the heart of Kandy. They are planning to make it one of the state-of-the-art companies in Kandy with the latest facilities. It is expected to have nearly 150 employees in Kandy branch. Department

Number of Users

Customer Care

10

Sales and Marketing

20

Finance

25

Legal

5

HR

10

Developers

55

Network Team

5

Server Room

Servers +ISP connections

Following requirements are given by the Management; •

All the departments must be separated with unique subnet and should not communicate with each other unless there is a special requirement.

•

192.168.10.0/24 is given and should be used for all the departments except the server room. IPs should assign using DHCP.

•

ERP and CRM Systems need to be implemented in Kandy branch in local servers.

•

Number of servers required for the Server room need to be decided by the

Network designer and should be assigned with 10.254.1.0/24 subnet. (Uses static IPs) High level of redundancy is expected in network design to eliminate single point of failures

•

and traffic bottle necks. •

Sales and Marketing Team need to access Network resources using WIFI connectivity.

•

Proper methods for networking monitoring and troubleshooting need to be established.

•

All possible network security mechanisms should be implemented.

Assume you have been appointed as the new network consultant of VIDCO-19 Solutions. Prepare a network architectural design and implement it with your suggestions and recommendations to meet the company requirements.

(Note: Clearly state your assumptions. You are allowed to design the network according to your assumptions, but main requirements should not be violated)

Task 01 1.1

Discuss the different network models/system types that can be implemented in Kandy branch with their benefits and constraints.

1.2

Discuss main IEEE Ethernet standards that can be used in above LAN and WLAN design?

1.3

Critically analyze network protocol suites used in Network Industry and recommend suitable network protocol suites for above scenario and justify your selection.

1.4

Explain the difference between Logical topology and Physical topology using examples and compare main network topologies used in network design.

1.5

Recommend a suitable network topology for above scenario and justify your answer with valid points.

Task 02 2.1

Discuss the operating principles of network devices that can be used for above scenario. Ex: Router, Switch, Etc.

2.2

Explore and describe the devices which we can use to enhance security of VIDCO-19 Kandy Branch.

2.3

Critically analyze the importance of networking software and provide examples for networking software can be used in above network design.

2.4

Discuss the importance of Servers in computer networks and research on Servers that are available in today’s market with their specifications and Recommend server/servers and workstations for above scenario and justify your selection with valid points.

2.5

Discuss why it is important to have compatible devices and related software in network design.

Task 03 3.1

Provide VLAN and IP subnetting scheme for above scenario to satisfy user requirements.

3.2 Provide a list of devices, network components and software need to design a network for above scenario and justify your selection. 3.3 Provide a detailed network design (Diagram) for your design using modeling tool. (Ex: Microsoft Visio). 3.4 Design a User feedback form and get feedback from network users and analyze their feedback and suggestions. 3.5 Install and configure Network services and Applications* of your choice to accomplish above user requirements. (Ex: DHCP, DNS, Active Directory, Proxy, Web, Etc.) (Note: Screen shots of minimum 2 services are required) 3.6

Design a detailed Maintenance schedule for above Network design.

*Note: - Screen shots of Configuration scripts should be presented.

Task 04 4.1

Implement and configure all network devices* according to the requirements given in the scenario.

4.2 Develop test cases and Test the above Network to verify *whether the design objectives are met. 4.3 Discuss Why network monitoring is important in VIDCO-19 Kandy branch? Explain with valid points. 4.4 Install and configure Network monitoring tool/tools* of your choice and analyze results. 4.5 Provide troubleshooting steps for following situations; a. Everything is working normally but suddenly the connection goes away, and then comes back, and then goes away again on client computer.(i.e., flapping) b. Network cable plugged in, but getting no connection. 4.6

Recommend potential future enhancements for the networked system and justify your recommendations.

4.7

Write a conclusion for your report by Critically evaluating design, planning, Configuration and testing of your network.

*Note: - Screen shots of Configuration scripts should be presented.

Grading Rubric

Grading Criteria LO1 : Examine networking principles and their protocols. 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 optimization. LO 1 & LO2 D1 Considering a given scenario, identify the topology protocol selected for the efficient utilisation of a networking system. LO3 : Design efficient networked systems

P5 Design a networked system to meet a given specification.

Achieved

Feedback

P6 Test and evaluate the design to meet the requirements and analyze user feedback. 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 analyze 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.

Task 1 1.1 Different network models discussion

The networking model describes the architecture, components, and design used to establish communication between the source and destination systems. Aliases for network models include protocol stacks, protocol suites, network stacks, and network protocols. There are 2 predominant models available. Let us take a look at them

1. Open Systems Interconnection (OSI) Model 2. Transmission Control Protocol/Internet Protocol (TCP/IP) Model

OSI Model OSI stands for Open System Interconnect. It is an open standard for establishing communication between systems. We will go over this model in more depth.

Application Layer: The entire process begins at the end user’s device. This can be a phone, laptop, server, etc. The application layer provides the interface for data exchange between the program and the user. For example, Facebook’s web application/mobile application is the interface through which we like, share, comment, and perform various other activities. All these activities generate snippets of data that needs to be transmitted across the network.

Presentation Layer: The presentation layer ensures the translation of characters from the original format in the host system to the format of the receiving system. It also adds encryption and decryption features. Data compression is handled at this layer.

Session Layer: The inclusion of this layer enables maintaining sessions during browsing. This helps with implementing authentication, authorization, synchronization, and dialog control. Let us consider examples to appreciate the significance of the session layer.

1. Authentication: Once a user logs in, he/she should remain logged in until he/she logs out. Obtaining the status of a user’s authentication happens at this layer. 2. Authorization: Access rights to specific parts of a website are given to super-users and admins. 3. Dialog Control: Allows various systems running applications like WebEx to communicate. The challenge here is to send and receive data simultaneously, that is overcome by half-duplex or full-duplex protocols under the session layer. 4. Synchronization: The digital experience relies on audio and video being synchronized. The session layer ensures the timestamps of the audio and video received are in the right order. Transport Layer: The transport layer is the fourth layer in the OSI model and enables the following services:

1. Reliability: This layer ensures that a packet sent is received without corruption. If not, the packet is resent. This may add a delay. But, it is suitable for applications where data integrity is a must. 2. Flow-Control: The rate of sending information is limited by the buffer size and the receiver capacity. The delays caused due to propagation, queueing, and transmission are taken into account by the flow-control algorithms. 3. Congestion Control: In routers, the entry of packets can be decided based on the current traffic. 4. Multiplexing and Demultiplexing: Before the transport layer, the ports do not play a major role. The ports can be thought of as multiple inputs to the same network channel. The transport Layer enables multiplexing of various application inputs. On the receiving end, the transport layer sends the packets to corresponding ports. This action is similar to that of a demux. Network Layer: The network layer is one of the most important layers. It enables many features such as:

1. Address Assignment: IP addresses are assigned to the host. There are two ways of assigning addresses: Static and Dynamic. Static addresses are assigned manually and

do not change under any circumstances. Dynamic IP’s, on the other hand, are assigned on an as-needed basis. 2. Routing: Selecting the route can be done manually or automatically. Today, most of it is automatic. There are two predominant algorithms used for routing: Distance Vector Routing and Link State Routing. 3. Fragmentation: Within the transport layer, there is a constraint on the maximum allowable size for data. Therefore, bits are segmented accordingly in the transport layer. Fragmentation is the same process applied to the segmented packets received from the transport layer. The aim is to accommodate datagrams received from the transport layer into frames. Data Link Layer: The main responsibility of the Data Link Layer(DLL) is ensuring Flow Control, Error Control, Access Control, Framing, and the reading of physical addresses. We will go over each of the processes in detail:

1. Framing: The process of taking a packet from the layer above and adding a frame to the packet is called framing. The frame includes data such as the end of the packet, message length, etc. to achieve accurate information at the receiving end. 2. Flow Control: DLL restricts the size of t...