1619 - Assignment 2 Full PDF

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Higher Nationals in ComputingUnit 2: NetworkingASSIGNMENT 2Learner’s name:ID:Class:Subject code: 1619Assessor name: PHAN MINH TAMAssignment due: Assignment submitted:ASSIGNMENT 2 FRONT SHEETQualification BTEC Level 5 HND Diploma in ComputingUnit number and title Unit 2: Networking InfrastructureSubm...

Description

Higher Nationals in Computing

Unit 2: Networking ASSIGNMENT 2

Learner’s name: ID: Class: Subject code: 1619 Assessor name: PHAN MINH TAM

Assignment due:

Assignment submitted:

ASSIGNMENT 2 FRONT SHEET Qualification

BTEC Level 5 HND Diploma in Computing

Unit number and title

Unit 2: Networking Infrastructure

Submission date

Date Received 1st submission

Re-submission Date

Date Received 2nd submission

Student Name

Student ID

Class

Assessor name

Tam Phan

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 Grading grid

P5

P6

P7

P8

M3

M4

D2

D3

❒ Summative Feedback:

Grade: Signature & Date:

❒ Resubmission Feedback:

Assessor Signature:

Date:

Assignment Brief 2 (RQF) Higher National Certificate/Diploma in Computing Student Name/ID Number: Unit Number and Title:

Unit 2: Networking

Academic Year:

2021 – 2022

Unit Assessor:

Tam Phan

Assignment Title:

Networking Infrastructure

Issue Date:

November 17, 2021

Submission Date: Internal Verifier Name: Date:

Submission Format:

Format: ● 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. Submission ● Students are compulsory to submit the assignment in due date and in a way requested by the Tutor. ● The form of submission will be a soft copy posted on http://cms.greenwich.edu.vn/ . ● Remember to convert the word file into PDF file before the submission on CMS. Note: ● The individual Assignment must be your own work, and not copied by or from another student. ●

If you use ideas, quotes or data (such as diagrams) from books, journals or other sources, you must

reference your sources, using the Harvard style. ● Make sure that you understand and follow the guidelines to avoid plagiarism. Failure to comply this requirement will result in a failed assignment. Unit Learning Outcomes:

LO3 Design efficient networked systems. LO4 Implement and diagnose networked systems. Assignment Brief and Guidance:

Assignment scenario (cont.) The CEO Mr. Nguyen is happy with your first report and now he has asked you to analyse the specification from the institution, as given earlier. You need to design and implement the networking project within a given timeframe: Task 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 selection of accessories.



Suggest a maintenance schedule to support the networked system.

Task 3 Implement test and diagnose networked systems: 

Implement a networked system based on your prepared design.

 

Conduct verification with, e.g., Ping, extended ping, trace route, telnet, SSH, etc. Record the test results and analyse 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.



Learning Outcomes and Assessment Criteria (Assignment 1): Learning Outcome

Pass

Merit

Distinction

LO3

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

M3 Install and configure network services and applications on your choice.

D2 Design a maintenance schedule to support the networked system.

M4 Recommend potential enhancements for the networked systems.

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

P6 Evaluate the design to meet the requirements.

LO4

P7 Implement a networked system based on a prepared design. P8 Document and analyse test results against expected results.

Table of Contents

ASSIGNMENT 2 ANSWERS P5. Provide a logical/physical design of the networked system with clear explanation and addressing table. 1. Network design  Network design is a category of systems design that deals with data transport mechanisms. As with other systems' design disciplines, network design follows an analysis stage, where requirements are generated, and precedes implementation, where the system (or relevant system component) is constructed. The objective of network design is to satisfy data communication requirements while minimizing expense. Requirement scope can vary widely from one network design project to another based on geographic particularities and the nature of the data requiring transport.

 Network design is a complicated process involving evaluating and scoping the network to be implemented. The design process is typically depicted in the form of a network diagram, which is the blueprint for the physical implementation of the network. Network design will typically include the cabling structure, a logical map of the network to be implemented, the quantity of network devices, the type of network devices, the location of network devices, the IP addressing structure, and the network security architecture.  Network design divide into 2 type:

1.1.



Logical design



Physical design Logical design Page |1



A Logical Network Design is focused on how to layout your plant and enterprise and where you would locate key distribution points for the network as well as what types of devices and switches you should use to interconnect the plant. It can also include how to do IP addresses, VLANs, and switch configurations. Below are key features of the Logical Design:  IP Address Scheme and Subnetting  VLAN Selection  Access and Distribution Layer Switch types, models and ports.  Typical configurations based upon standards  Logical Plant Floor layout

1.2. 

Physical design

A Physical Network Design determines what the physical infrastructure needs to look like and how to interconnect all the devices. Key features of the Physical Design are: Page |2

 Evaluation of Environmental Conditions relating to Physical Media type required.  Space Planning, Pathways, Routing  Placement and Configuration of Zone Enclosures  Physical Media required based upon logical design considerations i.e. fiber, copper, conduit types, etc.

1.3.

The difference between logical and physical design  The logical design is more conceptual and abstract than the physical design. In the logical design, you look at the logical relationships among the objects. In the physical design, you look at the most effective way of storing and retrieving the objects.  The primary difference between logical network design and physical network design is that of iterative production of a solution from the identification of a problem. For example, when a business needs to share information in real-time with remote offices, they are thinking in terms of business first and technology second. This is where identification of a problem begins, and as the problem is documented, it can be iteratively evolved from a logical solution into many possible physical designs. The logical design of a network can be re-implemented with new technology, and yet the logical design remains the same. Logical designs can span generations of technology, Page |3

while a physical design is one realization of a logical design. 2. Requirement analysis from given scenario 

The scenario that requires me to design a networked system that includes:  People: 200 students, 15 teachers, 12 marketing and administration staff, 5 higher managers including the academic heads and the programming managers, and 3 computer network administrators.  Resources: 50 student lab computers, 35 staff computers, and 3 printers.  Building: 3 floors, all computers and printers are on the ground floor apart from the IT labs – one lab located on the first floor and another located on the second floor.



I analysed this scenario and I decide to design a network system with:  Target:  All computers can connect to the Internet and communicate with each other.  My design networking system is an optimal networking system and matches the requirements of the scenario.  The administrator can access all computers.  Structure:  Two Lab room is placed on Floor 1 and Floor 2.  In-Ground, we have 4 room, including: IT room, Higher managers room, Marketing room, Teacher room.  The second router is responsible for connecting the IT room with the server system (DNS, WEB, FTP,SMTP) to the building's network.  3 routers are connected to each other through a ring structure

3. Logical design of the network system 3.1.

Logical design diagram

Page |4

3.2.

Explanation

 Floor 1  Lab 1 consists of 25 computers linked to the switch using a star topology, 1 router connecting floors 1 and 2

 Floor 2  Lab 2 consists of 25 computers linked to the switch using a star topology, 1 router connecting floors 1 and 2 Page |5

 Ground 

The ground floor is divided into 4 main rooms (Teacher room, It room, marketing room, Higher managers). The ground floor includes 35 computers, 3 printers, 4 servers, 4 switches, and 2 router:

 Teacher room: The teacher's room consists of 15 computers and 1 printer connected to the switch using a star topology.  IT room: The IT room consists of 3 computers and 4 servers connected to the switch using a star topology.  Marketing room: The marketing room consists of 12 computers and 1 printer connected to the switch using a star topology.  Higher managers: The higher managers room consists of 12 computers and 1 printer connected to the switch using a star topology

Page |6

4. Physical design of the network system 4.1.

Physical design diagram

Page |7

Page |8

4.2.

Explanation



The topology used here is the hybrid topology:



Advantages:  If an error occurs in any part of the network, it will not affect the operation of the rest of the network  The size of the network can be easily expanded by adding new devices without affecting the functionality of the existing network.  This topology is very flexible as it can be designed according to the requirements of the organization.  The hybrid topology is very effective because it can be designed in such a way that the strength of the network is maximized and the weakness of the network minimized. 

Disadvantages:  The major limitation of the hybrid topology is the design of the hybrid network. It is very difficult to design the architecture of a Hybrid network.  Hubs (hubs) used in a hybrid topology are very expensive because these hubs are different from the usual Hubs used in other topologies.  Infrastructure costs are very high because a hybrid network requires a lot of cabling, network equipment, etc.

5. IP table of the network devices

Device name

IP Address

Description

PC0

192.168.1.2

Ground – IT room

PC1

192.168.1.3

Ground – IT room

PC2

192.168.1.4

Ground – IT room

PC3

192.168.2.2

Ground–Higher manager

Page |9

PC4

192.168.2.3

Ground–Higher manager

PC5

192.168.2.4

Ground–Higher manager

PC6

192.168.2.5

Ground–Higher manager

PC7

192.168.2.6

Ground–Higher manager

PC8

192.168.3.2

Ground – Teacher room

PC9

192.168.3.3

Ground – Teacher room

PC10

192.168.3.4

Ground – Teacher room

PC11

192.168.3.5

Ground – Teacher room

PC12

192.168.3.6

Ground – Teacher room

PC13

192.168.3.7

Ground – Teacher room

PC14

192.168.3.8

Ground – Teacher room

PC15

192.168.3.9

Ground – Teacher room

PC16

192.168.3.10

Ground – Teacher room

PC17

192.168.3.11

Ground – Teacher room

PC18

192.168.3.12

Ground – Teacher room

PC19

192.168.3.13

Ground – Teacher room

PC20

192.168.3.14

Ground – Teacher room

PC21

192.168.3.15

Ground – Teacher room

PC22

192.168.3.16

Ground – Teacher room

PC23

192.168.4.2

Ground – Marketing room

PC24

192.168.4.3

Ground – Marketing room

PC25

192.168.4.4

Ground – Marketing room

PC26

192.168.4.5

Ground – Marketing room P a g e | 10

PC27

192.168.4.6

Ground – Marketing room

PC28

192.168.4.7

Ground – Marketing room

PC29

192.168.4.8

Ground – Marketing room

PC30

192.168.4.9

Ground – Marketing room

PC31

192.168.4.10

Ground – Marketing room

PC32

192.168.4.11

Ground – Marketing room

PC33

192.168.4.12

Ground – Marketing room

PC34

192.168.4.13

Ground – Marketing room

PC35

192.168.6.2

Floor 1 – Lab 1

PC36

192.168.6.3

Floor 1 – Lab 1

PC37

192.168.6.4

Floor 1 – Lab 1

PC38

192.168.6.5

Floor 1 – Lab 1

PC39

192.168.6.6

Floor 1 – Lab 1

PC40

192.168.6.7

Floor 1 – Lab 1

PC41

192.168.6.8

Floor 1 – Lab 1

PC42

192.168.6.9

Floor 1 – Lab 1

PC43

192.168.6.10

Floor 1 – Lab 1

PC44

192.168.6.11

Floor 1 – Lab 1

PC45

192.168.6.12

Floor 1 – Lab 1

PC46

192.168.6.13

Floor 1 – Lab 1

PC47

192.168.6.14

Floor 1 – Lab 1

PC48

192.168.6.15

Floor 1 – Lab 1

PC49

192.168.6.16

Floor 1 – Lab 1

P a g e | 11

PC50

192.168.6.17

Floor 1 – Lab 1

PC51

192.168.6.18

Floor 1 – Lab 1

PC52

192.168.6.19

Floor 1 – Lab 1

PC53

192.168.6.20

Floor 1 – Lab 1

PC54

192.168.6.21

Floor 1 – Lab 1

PC55

192.168.6.22

Floor 1 – Lab 1

PC56

192.168.6.23

Floor 1 – Lab 1

PC57

192.168.6.24

Floor 1 – Lab 1

PC58

192.168.6.25

Floor 1 – Lab 1

PC59

192.168.6.26

Floor 1 – Lab 1

PC60

192.168.5.2

Floor 2 – Lab 2

PC61

192.168.5.3

Floor 2 – Lab 2

PC62

192.168.5.4

Floor 2 – Lab 2

PC63

192.168.5.5

Floor 2 – Lab 2

PC64

192.168.5.6

Floor 2 – Lab 2

PC65

192.168.5.7

Floor 2 – Lab 2

PC66

192.168.5.8

Floor 2 – Lab 2

PC67

192.168.5.9

Floor 2 – Lab 2

PC68

192.168.5.10

Floor 2 – Lab 2

PC69

192.168.5.11

Floor 2 – Lab 2

PC70

192.168.5.12

Floor 2 – Lab 2

PC71

192.168.5.13

Floor 2 – Lab 2

PC72

192.168.5.14

Floor 2 – Lab 2

P a g e | 12

PC73

192.168.5.15

Floor 2 – Lab 2

PC74

192.168.5.16

Floor 2 – Lab 2

PC75

192.168.5.17

Floor 2 – Lab 2

PC76

192.168.5.18

Floor 2 – Lab 2

PC77

192.168.5.19

Floor 2 – Lab 2

PC78

192.168.5.20

Floor 2 – Lab 2

PC79

192.168.5.21

Floor 2 – Lab 2

PC80

192.168.5.22

Floor 2 – Lab 2

PC81

192.168.5.23

Floor 2 – Lab 2

PC82

192.168.5.24

Floor 2 – Lab 2

PC83

192.168.5.25

Floor 2 – Lab 2

PC84

192.168.5.26

Floor 2 – Lab 2

Server DNS

192.168.1.5

Server WEB

192.168.1.6

Server SMTP

192.168.1.7

Server FTP

192.168.1.8

Printer 0

192.168.3.7

Printer 1

192.168.2.5

Printer 2

192.168.4.5

M3 Install and configure network services and applications on your choice. P a g e | 13

1. Installation:

2. Configuring network services and applications: 2.1.

Configuring service and application:

2.1.1. HTTP configuration: 2.1.2. DHCP configuration: 2.1.3. Configuring DNS server 2.1.4. Configuring FTP server 2.1.5. Configuring web server 2.1.6. Configuring SMTP server M4 Recommend potential enhancements for the networked systems

 For enhancements, /24 subnet masks cause unmanageable IP addresses. To solve this problem, the company could buy some more routers, divide buildings for departments and use another subnet mask to limit the scope of each part. Therefore, it makes network infrastructure managers easy to manage buildings. Moreover, if the building is successfully P a g e | ...