Basics of Computer Networking

Enhance your computer networking knowledge with our free online course! Learn from our experts on various aspects of this domain. Enrol today and start learning!

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4.5 Hrs

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Basics of Computer Networking

4.5 Learning Hours . Beginner

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About this course

In this free course on Computer Networking, we'll cover all the essentials you need to know to get started in IT networking. We'll kick things off with an introduction to IT networking, exploring the importance of networks and how they enable communication between devices. From there, we'll dive into networking basics, where you'll learn about concepts like IP addresses, subnetting, and DNS. Next up, we'll tackle network devices and hardware. We'll discuss routers, switches, modems, and more and see how they all work together to create a functional network. To understand the structure of networks, we'll delve into networking models like OSI and TCP/IP. You'll grasp the layered approach that helps ensure smooth communication across networks.

 

Addressing is another crucial aspect of networking, and we'll cover IP addressing and subnetting in detail. You'll gain the skills to assign and manage IP addresses effectively. We'll explore networking protocols such as TCP, UDP, HTTP, and DNS as we move forward. You'll learn how these protocols facilitate data transmission and enable the internet to function.

 

Lastly, we'll touch on network security. We'll discuss common threats, security measures like firewalls and encryption, and best practices to keep networks safe and secure. By the end of this course, you'll have a solid foundation in computer networking, ready to tackle more advanced topics. So let's get started and embark on this networking adventure together!
 

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Course Outline

Overview of IT Networking

This module provides a comprehensive introduction to computer networking, covering topics like network types, topologies, devices, protocols, IP addressing, and network security measures.

Introduction to Networks and their Types

This module introduces network types like LANs, WANs, etc., exploring their purpose, characteristics and establishing a foundation for further study in computer networking.

Introduction to Network Topologies

This module introduces network topologies (bus, star, ring, mesh, hybrid), explaining their physical and logical layouts, and discussing the associated advantages and disadvantages.

Routers, Switches, Hubs, and NICs

This module provides an overview of network devices (routers, switches, hubs, NICs) and their functions in facilitating network communication and managing traffic.

Cables, Connectors, and Differences Between the Network Devices

This module covers networking cables, connectors, and their applications. It also explores the differences in functionality and purpose of network devices like routers, switches, hubs, and NICs in network infrastructure.

Introduction to OSI Model

This module provides an overview of the OSI model, a framework for understanding network protocols, exploring the layered architecture, functions, and interactions of each layer in network communication.

Introduction to TCP/IP Model

This module introduces the TCP/IP model, the foundational protocol suite of the Internet, explaining the structure, purpose, and inter-device communication enabled by the TCP/IP model's layers.

IP Addressing

This module covers IP addressing fundamentals: structure, format, subnet masks, and network classes, delving into IP address assignment and usage for device identification on a network.

Subnet Masks, Network Classes, and IP Address Configuration

In this module, you will learn the concepts of subnet masks, network classes, and the configuration of IP addresses. Learners will understand how subnet masks and network classes are used to define network boundaries and how to configure IP addresses within those boundaries.

Introduction to Networking Protocols - TCP, UDP and HTTP

This module provides an overview of essential networking protocols: TCP, UDP, and HTTP, covering the characteristics, functions, and common use cases of these protocols in network communication.

Networking Protocols - HTTPS, FTP, and DHCP

This module covers important networking protocols: HTTPS, FTP, and DHCP. Learners understand their significance in secure communication, file transfer, and automatic IP address assignment within a network environment.

Networking Protocols - DNS

This module explores the DNS protocol, which translates domain names into IP addresses including DNS's role in resolving domain names and connecting devices on a network.

Importance of Network Security and Firewall

This module highlights network security and the role of firewalls in protecting against unauthorized access and malicious activities including the importance of robust security measures for safeguarding sensitive information and ensuring communication integrity.

Basic Security Measures

This module covers fundamental security measures for enhancing network security, including password management, user authentication, encryption, and software updates including their significance in mitigating security risks and protecting network infrastructure.

Summary on Network Security

This module provides a concise overview of network security concepts, including the importance of securing networks, common threats, key security measures (firewalls, encryption, access controls, intrusion detection), ensuring data confidentiality, integrity, and availability.

Summary on Basics of Computer Networking

This module offers a comprehensive recap of computer networking fundamentals, covering network types, topologies, devices, protocols, IP addressing, and security, consolidating knowledge and preparing for further exploration in the field.

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4.43
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Ratings & Reviews of this Course

Reviewer Profile

5.0

Mastered the Basics of Computer Networks: Covering OSI Layers, TCP/IP Protocols, and Network Topologies
I enjoyed exploring the fundamentals of computer networks, including the OSI and TCP/IP models, which clarified how data transmission works. Learning about various network topologies and protocols was enlightening, particularly understanding the roles of TCP and UDP in communication. The hands-on experience with practical network configurations and security measures was invaluable. Overall, the course offered a comprehensive understanding of network architecture and its crucial components.
Reviewer Profile

5.0

A Very Good Experience: Learned Many New Things Easily
I liked the instructor's explanation and how the curriculum was planned very well. It gave me very good knowledge about the basics of computer networks. Thanks a lot.
Reviewer Profile

5.0

Awesome Course to Learn the Basics of Computer Networks
Excellent! Easy to learn and understand the course content.
Reviewer Profile

5.0

Solid Foundation in Networking Concepts and Technologies
The instructor's clear explanations and practical examples made complex topics accessible. I particularly appreciated the hands-on exercises that allowed me to apply theoretical knowledge to real-world scenarios. While the course covered essential topics, I would have benefited from more in-depth discussions on advanced networking protocols and troubleshooting techniques. Overall, this course was valuable and has equipped me with the necessary skills for networking-related tasks.
Reviewer Profile

5.0

Comprehensive Introduction to Networking Concepts
I really appreciated the in-depth coverage of networking fundamentals, from the OSI model to routing protocols. The instructor was clear and concise, making the complex concepts easy to grasp. The quizzes and assignments helped reinforce the material, and the curriculum was well-organized, building logically from one concept to the next. Overall, it provided a strong foundation in networking basics.
Reviewer Profile

5.0

Completed Basics of Computer Networking Course on Great Learning
I had a great experience learning the basics of computer networking through Great Learning. The course was well-structured and easy to follow, with clear explanations of core concepts. It provided a strong foundation for anyone interested in networking. Highly recommend it for beginners looking to get started in the field!
Reviewer Profile

5.0

Great Learning Experience: Very Informative
This course was very informative and provided a thorough understanding of computer networks. The quizzes and assignments were well-structured, making it easier to grasp the key concepts. Highly recommended for anyone looking to dive deep into networking!
Reviewer Profile

5.0

User-Friendly Curriculum and Easy-to-Understand Lessons
I recently completed an online IT networking course, and I must say it exceeded my expectations in many ways. The course was well-structured and covered essential topics such as network architecture, protocols (like TCP/IP and UDP), IP addressing, subnetting, and troubleshooting. The progression of the lessons was smooth, starting from basic networking concepts and gradually moving to more advanced topics, which made it easy to follow regardless of prior knowledge.
Reviewer Profile

5.0

Lecture Notes Are Easy to Understand and Very Clear
The networking basics online course was highly informative, breaking down complex concepts into easy-to-understand lessons. The flexibility and structure helped me grasp TCP/IP protocols, IP addressing, and routing fundamentals effectively. The hands-on labs and quizzes made the learning process engaging and practical. I highly recommend it!
Reviewer Profile

5.0

Understanding Layered Communication in Computer Networks
In a computer networks course, learning about the OSI model was a key experience. It introduced me to the concept of layered communication, where each layer handles specific tasks such as data formatting, transmission, routing, and security. This model made it easier to understand how different protocols and technologies interact, ensuring efficient and secure data transfer across networks. It provided a solid foundation for understanding modern networking systems.

Earn a certificate of completion

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Get free course content

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Learn at your own pace

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Master in-demand skills & tools

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Test your skills with quizzes

Basics of Computer Networking

4.5 Learning Hours . Beginner

Frequently Asked Questions

What are the prerequisites required to learn this Free Basics Computer Networking Course?

You do not need any prior knowledge to learn this Free Computer Networking Course. 

How long does it take to complete this Free Basics Computer Networking Course?

Basics Computer Networking is a 1.5 - hour long course, but it is self-paced. Once you enrol, you can take your own time to complete the course.
 

Will I have lifetime access to the free course?

Yes, once you enrol in the course, you will have lifetime access to any of the Great Learning Academy’s free courses. You can log in and learn whenever you want to.

Will I get a certificate after completing this Free Computer Networking Course?

Yes, you will get a certificate of completion after completing all the modules and cracking the assessment. 

How much does this Free Computer Networking Course cost?

It is an entirely free course from Great Learning Academy.

Is there any limit on how many times I can take this free course?

No. There is no limit. Once you enrol in the Free Computer Networking Course, you have lifetime access to it. So, you can log in anytime and learn it for free online.

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Basics of Computer Networking

Computer networking is a fundamental aspect of modern technology that allows computers and other devices to communicate and share resources. It plays a crucial role in connecting individuals, businesses, and organizations across the globe, enabling seamless data transmission and collaboration. From local area networks (LANs) to wide area networks (WANs) and the internet, computer networking has revolutionized how we communicate and access information. At its core, computer networking connects multiple devices, such as computers, servers, routers, switches, and wireless access points, through various transmission media, including wired and wireless connections. These interconnected devices form a network, enabling the transfer of data and the sharing of resources.

Local area networks (LANs) are typically used within a limited geographical area, such as a home, office, or campus. LANs often employ Ethernet cables or Wi-Fi connections to connect devices. They allow users to share files, printers, and other resources and communicate through messaging or video conferencing applications. LANs are commonly found in homes and small to medium-sized businesses, where devices must be connected within a confined area. Wide area networks (WANs), on the other hand, cover larger geographical areas and connect multiple LANs. WANs utilize leased lines, fiber optics, or satellite links to transmit data over long distances. The internet itself can be considered a massive WAN, connecting networks and devices across the globe. WANs are essential for organizations with multiple branches or individuals who require access to resources in different locations.

Computer networks rely on various protocols and standards to facilitate data transmission and enable communication between devices. The most widely used protocol suite is the Transmission Control/Internet Protocol (TCP/IP) is the most commonly used protocol suite. TCP/IP provides a set of rules and procedures for devices to communicate over the internet and other networks. It breaks down data into packets, then transmitted and reassembled at the destination. Other standard protocols include the Internet Protocol (IP), Ethernet, Wi-Fi (802.11), and the Domain Name System (DNS). Networking devices such as routers and switches play a vital role in directing data traffic and ensuring efficient communication within a network. Routers connect different networks, determining the optimal path for data packets to reach their destination. They use routing tables and algorithms to make intelligent decisions about forwarding packets. Switches, conversely, enable the interconnection of devices within a network. They use MAC addresses to identify devices and deliver data to the appropriate recipient.

Wireless networking has gained significant prominence recently, allowing devices to connect without needing physical cables. Based on the IEEE 802.11 standard, Wi-Fi has become ubiquitous, enabling wireless connectivity in homes, offices, cafes, and public spaces. Wireless access points act as central hubs for wireless connections, allowing devices to connect to a network using Wi-Fi signals. Computer networking has revolutionized various aspects of our lives, transforming how we communicate, conduct business, and access information. From email communication and video conferencing to online shopping and social media, computer networks underpin many daily activities. As a global network of networks, the Internet has connected people worldwide and has become an indispensable tool for information sharing, research, and global connectivity.

In conclusion, computer networking is the backbone of modern communication and connectivity. It enables the interconnection of devices, facilitates data transmission, and allows for the sharing of resources. From local networks to global internet connections, computer networking has transformed how we live and work, providing unprecedented opportunities for collaboration, information exchange, and technological advancement.
 

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