A computer network's most basic form entails two computers sharing data by being connected via a wire. No matter how complex, computer networking is based on that basic framework. Although the concept of using a cable to connect two computers may not appear remarkable at the time, it has turned out to be a significant advancement in communications.

What is computer networking

A computer network is a collection of two or more linked computers. A network connection can be created using either cable or wireless media. Each network that connects computers and tools uses hardware and software.

The goal of a computer network is to transfer, exchange, or share data and resources between two or more computers that are linked together via WiFi or wired (wired). 

The field of computer networking is a vast and trendy one since this is the world of technology, so there are many people pursuing careers in it. Students who wish to pursue their career in computer networking will need to complete the degree with all assignments, thesis, and projects. They may opt for Assignment Help if they face any difficulties during the writing process.

TYPES OF NETWORKS

LAN (Local Area Network)

A local area network (LAN) gives a set of computers that are close to one another, like those in an office building, a school, or a house, networking capabilities. Sharing resources like files, printers, games, and other applications are possible with a LAN. A LAN frequently connects to the Internet and other LANs in turn.

Metropolitan Area Network (MAN) 

It is a system of gadgets spread out over a one to ten-kilometer radius, or inside a metropolis. It could be a single network, like a cable network, or a way to link up several local area networks (LANs) into a larger network, allowing resources to be shared between LANs and devices.

WIDE AREA NETWORK (WAN)

Wide area network is referred to as WAN. It is prevalent throughout the world. An enterprise network is a WAN that is entirely owned and utilized by a single business. It can link computers and other gadgets located on different sides of the globe. A WAN is formed by connecting LANs. A WAN could be compared to the Internet.

Concept of network topologies

The Greek word "topology" comes from topos, which means "location" In computer networking, TOPOLOGY refers to the physical arrangement of computers, cables, switches, routers, and other network components. This word may also refer to the underlying network architecture, such as Ethernet or Token Ring.

The size, architecture, cost, and management of the network will all influence the topology you choose when designing a network. These are some examples of fundamental network topologies:

Bus topology 

All the devices/nodes are progressively connected to the same backbone or transmission line in a bus topology. Despite being a straightforward, inexpensive topology, there is a danger due to its single point of failure.

Star topology

Each node in the network is wired to a central hub or switch to form a topology known as a star topology. The failure of a central device might cause a network outage even while individual nodes or cables may not. 

Ring Topology

 Similar to a bus topology, it sequentially connected all network devices to a backbone. However, with ring topology, the backbone terminates at the starting node. You only used ring topology in networks that require high throughput because it shares many of the same drawbacks as bus architecture.

Tree topology

A root node is linked to two or more sub-level nodes, which in turn are linked hierarchically to other sub-level nodes. Physically, the tree topology is comparable to the bus and star topologies; the bus topology may be used for the network's backbone, while the star topology may be used for connecting the low-level nodes.

Mesh Topology

 Each node in the network has a topology that is directly connected to some or all of the other nodes there. Due to the increased expenses, this topology may only be suitable for networks that are extremely important due to the network's high fault tolerance.

Concept of network protocol

A conceptual framework called the OSI Model (Open Systems Interconnection Model) is employed to describe the operations of a networking system. To facilitate interoperability across various goods and software, the OSI model categorizes computing functions into a universal set of guidelines and requirements. Following are the seven layers that separate abstraction layers into which they divided the communications between computing systems in the OSI reference model.

Application Layer

It offers protocols that let computer programs exchange and receive data and give consumers useful information.

Layer of Presentation

 For data to be correctly received on the other end, it specifies how two devices should encode, encrypt, and compress data. 

System Layer

The network layer is in charge of taking frames from the data link layer and sending them to the correct locations based on the addresses they contain. Using logical addresses, such as IP addresses, the network layer locates the target (internet protocol).

Sequence Layer

The session layer establishes sessions, or channels of communication, between devices. It is in charge of starting sessions, making sure they are active and open while data is being exchanged, and shutting them down once communication is complete.

Data Link Layer

They used directly linked nodes for node-to-node data transfer at the data link layer, where data is bundled into frames. They likewise fixed errors that might have happened at the physical layer at the data link layer.

Transport Layer

Data packet delivery and error checking are controlled by the transport layer. It controls how much data is transferred between hosts and systems and how much data is transferred in what order.

Physical Layer

The wired or wireless connections that physically connect network nodes are under the control of the physical layer.

Conclusion

To conclude, networking is a diverse field, and you have many options if you want to pursue a career in it. As a student or a beginner, you get help from this post if you need to learn the core concept of networking. However, students still want to write and learn more about the field and have confusion so they opt for services like Do My Assignment to write better.

References

BAW.2020. Effective Implications of AI | In Creating Content for Digital Marketing. Online Available at: <https://bestassignmentwriter.co.uk/blog/effective-implications-of-ai-for-digital-marketing/> (Accessed: 5-october- 2022).

Walker, A.S., 2019. Perusall: harnessing AI robo-tools and writing analytics to improve student learning and increase instructor efficiency. J. Writing Analytics, 3.

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