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ASSIGNMENT 1 FRONT SHEET
Qualification BTEC Level 5 HND Diploma in Computing Unit number and title Unit 2: Networking Infrastructure Submission date 27 /06/2023 Date Received 1st submission Re-submission Date Date Received 2nd submission Student Name Nguyen Minh Anh Student ID BH Class SE06203 Assessor name Le Van Thuan 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 Anh P1 P2 P3 P4 M1 M2 D
❒ Summative Feedback: ❒ Resubmission Feedback: Grade: Assessor Signature: Date: Signature & Date:
- Table of contents Contents
- Table of Figures
- I. Introduction
- II. Body - 1. Discuss the benefits and constraints of different network types and standards. - 1. Define network.................................................................................................................................................. - 2. Network type (MAN, WAN, LAN etc.) - 3. What is Network protocol and Standards?
- Network topology & communication and Bandwidth requirements - Network topology definition. - Definition of physical topology. - Communication and Bandwidth - Define communication in terms of networking. - Rules of communication. - Bandwidth - Bandwidth requirements for the networks.
- Discuss the operating principles of networking devices and server types
- Discuss the inter-dependence of workstation hardware with relevant networking software.
- ● Give examples of interdependency.
- ● Define workstation hardware.
- ● Define networking software.
- example form your discussion. ● Discuss and explain the interdepency of workstation hardware with networking software. Derive an
- III. Conclusion
- IV. Evaluation ……………………………………………………………………………………………………………………………………………………………………….
- V. References ………………………………………………………………………………………………………………………………………………………….
- Figure 1/computer network.......................................................................................................................................... Table of Figures
- Figure 2/LAN network
- Figure 3/Man.................................................................................................................................................................
- Figure 4/Wan
- Figure 5/OSi.................................................................................................................................................................
- Figure 6/Data Link Layer in OSI Model........................................................................................................................
- Figure 7/OSi model
- Figure 8/IP address
- Figure 9/TCP IP
- Figure 10/Application Layer In Computer Network
- Figure 11/TCP Transport Layer
- Figure 12/ Network Layer
- Figure 13/Network Access Layer - an overview
- Figure 14/ Network Protocols Work
- Figure 15/Error of network protocol
- Figure 16/ PHYSICAL TOPOLOGY AND LOGICAL TOPOLOGY
- Figure 17/Diagram Physical Topologies
- Figure 18/Bandwidth is a parameter indicating the maximum capacity that your Website transmits each month ……….
- Figure 19/Industrial communication network
- Figure 20/Types of Communication
- Figure 21/Effective Software Design Doing
- Figure 22/Bandwidth is the maximum speed that a web
- Figure 23/Bandwidth measurement helps ensure that all
- Figure 24/Ethernet speed roadmap............................................................................................................................
- Figure 25/Sports Betting Tips & Predictions - Punters Tips - Punt Hub
- Figure 26/Using Cisco Network Switch
- Figure 27/Routers wifi.................................................................................................................................................
- Figure 28/Networking Software..................................................................................................................................
I. Introduction
As an international network administrator, my work involves ensuring the smooth operation and maintenance of computer networks across different countries. This can include designing and implementing network infrastructure, deploying security protocols, and troubleshooting any issues that may arise. As a network manager, my job is to oversee the overall operations of our organization's computer networks, which includes local area networks (LANs), wide area networks (WANs), and wireless networks. One of my primary responsibilities is to manage the network infrastructure, which involves designing, deploying, and maintaining the hardware, software, and other components that support our network. This infrastructure is vital to the smooth functioning of our organization as it allows for the efficient transfer of data, communication, and collaboration among different departments and team members. Some of the specific tasks involved in managing the network infrastructure include monitoring network performance, troubleshooting network issues, implementing security measures such as firewalls and antivirus software, maintaining network hardware and software, and staying up-to-date with emerging trends and technologies in the field of networking. Ultimately, my role is to ensure that our organization's network infrastructure is reliable, efficient, secure, and scalable, so that we can continue to meet the changing needs of our business and workforce. That is demonstrated through the project below.
II. Body
P1. Discuss the benefits and constraints of different network types
and standards.
1. Define network.
A network is a group of interconnected devices or computer systems that can communicate with each other, share information and resources, and work together to perform tasks. Networks can be classified into different types based on their size, architecture, and purpose. Some common types of networks include local area networks (LANs), wide area networks (WANs), metropolitan area networks (MANs), and the internet. The various devices that can be part of a network can include computers, servers, routers, switches, and modems.
2. Network type (MAN, WAN, LAN etc.)
A computer network is a group of computers connected with each other through a transmission medium such as cable, wire etc. In this guide, we will discuss the types of computer networks in detail. Types of Computer Network
Figure 2/LAN network
- What is LAN? Local area network is a group of computers connected with each other in a small places such as school, hospital, apartment etc.
- Advantages of LAN.
- LAN is secure because there is no outside connection with the local area network thus the data which is shared is safe on the local area network and can’t be accessed outside.
- LAN due to their small size are considerably faster, their speed can range anywhere from 100 to 100Mbps.
- LANs are not limited to wire connection, there is a new evolution to the LANs that allows local area network to work on a wireless connection
- Disadvantages of MAN Some of the disadvantages of a Metropolitan Area Network are: +The data rate is slow in a Metropolitan Area Network compared to LAN. +Compared to LAN, more cable is required to set up a Metropolitan Area Network.
Because this network comprises multiple LANs, it is difficult to keep hackers out. These networks must be implemented by skilled technicians and network administrators. This network’s implementation and management costs are higher than those of a local area network. It is challenging to manage this network because it’s an extensive network of numerous local area networks. As skilled technicians and network administrators are needed to implement this network, the overall installation and management costs rise. (shiksha, 2022)
- When to use LAN? A Local Area Network (LAN) is typically used to connect devices within a small geographical area, such as a home, office, or building. It is commonly used for sharing resources such as printers, files, and internet connection among devices. LANs are also efficient for communication among devices within the network, and they generally offer higher data transfer speeds than wide area networks (WANs). So, LANs are suitable for situations where devices need to communicate and share resources within a small area. (https://chatgptweb.org/, 2023)
- Metropolitan Area Network (MAN) Figure 3/Man
Wide area network provides long distance transmission of data. The size of the WAN is larger than LAN and MAN. A WAN can cover country, continent or even a whole world. Internet connection is an example of WAN. Other examples of WAN are mobile broadband connections such as 3G, 4G etc.
- Advantages of WAN: Centralized infrastructure: One of the main advantage of WAN is the that we do not need to maintain the backup and store data on local system as everything is stored online on a data centre, from where we can access the data through WAN. Privacy: We can setup the WAN in such a way that it encrypts the data that we share online that way the data is secure and minimises the risk of unauthorized access. Increased Bandwidth: With the WAN we get to choose the bandwidth based on the need, a large organization can have larger bandwidth that can carry large amount of data faster and efficiently. Area: A WAN can cover a large area or even a whole world though internet connection thus we can connect with the person in another country through WAN which is not possible is other type of computer networks.
- Disadvantages of WAN: Antivirus: Since our systems are connected with the large amount of systems, there is possibility that we may unknowingly download the virus that can affect our system and become threat to our privacy and may lead to data loss. Expensive: Cost of installation is very high. Issue resolution: Issue resolution takes time as the WAN covers large area, it is really difficult to pin point the exact location where the issues raised and causing the problem. Interconnection of Networks:
We have read LAN, MAN and WAN above, we also talked about internet. You can say that an internet is a combination of LAN, MAN and WAN. he benefits of a network include:
- Resource sharing: Networks allow multiple users to share hardware, software, and data resources, which saves cost and increases efficiency.
- Communication: Networks facilitate communication between users, whether it's through email, instant messaging, or video conferencing, making it easier to collaborate on projects or share information.
- Centralized control: Networks often have a central server that manages user access and permissions, making it easier for administrators to control and monitor the network.
- Data backup and recovery: Networks can provide centralized backup and recovery options, allowing data to be easily backed up and restored in the event of a disaster or system failure.
- Remote access: Networks allow users to access data and applications from remote locations, making it easier for employees to work from home or while on the go.
- Scalabiity: Networks can easily be expanded as the organization grows, allowing for increased capacity and additional users to be added as needed. When to use WAN?
3. What is Network protocol and Standards?
- What is network protocol and standards means?
Figure 5/OSi To understand how network protocols function, it's crucial to understand the workings of the seven layers of the OSI model:
- Physical layer. The physical layer is the initial layer that physically connects two interoperable systems. It controls simplex or duplex modem transmissions and transfers data in bits. Additionally, it oversees the hardware that connects the network interface card (NIC) to the network, including the wiring, cable terminators, topography and voltage levels.
- Data-link layer. The data-link layer is responsible for the error-free delivery of data from one node to another over the physical layer. It's also the firmware layer of the NIC. It puts datagrams together into frames and gives each frame the start and stop flags. Additionally, it fixes issues brought on by broken, misplaced or duplicate frames.
Figure 6/Data Link Layer in OSI Model
- Network layer. The network layer is concerned with information flow regulation, switching and routing between workstations. Additionally, it divides up datagrams from the transport layer into error- free and smaller datagrams.
- Transport layer. The transport layer transfers services from the network layer to the application layer and breaks down data into data frames for error checking at the network segment level. This also ensures that a fast host on a network doesn't overtake a slower one. Essentially, the transport layer ensures that the entire message is delivered from beginning to end. It also confirms a successful data transmission and retransmitting of the data if an error is discovered.
Figure 7/Osi model the OSI model Diagram showing the seven layers of the OSI model for how applications communicate over a network
Every packet transmitted and received over a network contains binary data. Most computing protocols add a header at the beginning of each network packet to store information about the sender and the message's intended destination. Some protocols may also include a footer at the end with additional information. Network protocols process these headers and footers as part of the data moving among devices in order to identify messages of their own kind. Network protocols are often outlined in an industry standard -- developed, defined and published by groups such as the following: International Telecommunication Union, or ITU. Institute of Electrical and Electronics Engineers, or IEEE. Internet Engineering Task Force, or IETF. International Organization for Standardization, or ISO. World Wide Web Consortium, or W3C. The TCP/IP model A set of cooperating network protocols is called a protocol suite. The Transmission Control Protocol/Internet Protocol (TCP/IP) suite, which is typically used in client-server models, includes numerous protocols across layers, such as the data, network, transport and application layers, working together to enable internet connectivity.
Figure 9/TCP IP suite consists of four layers, each with its protocols. The four layers of the TCP/IP model are the following: Application layer. This is the topmost layer of the TCP/IP model and is responsible for providing users with access to network resources. Some of the protocols included in this layer are HTTP, Simple Mail Transfer Protocol (SMTP) and FTP.
Figure 10/Application Layer In Computer Network Transport layer. This layer ensures that segments are transmitted correctly via the communication channel. The network link between the source and destination systems is also established at this layer. Figure 11/TCP Transport Layer
