Computer Networking - Local Area Networks and the OSI Model

Network and Security
Free Course
Understanding how computers communicate with each other is a highly valuable skill that not many people possess. This is why computer technicians are much needed in the IT industry. This computer network course will teach you about the key devices found on local area networks (LANs), the structure of the most common types of LANs, and the seven layers of the OSI model that allow devices on networks to communicate with each other.
  • Duration

    1-2 Hours
  • Assessment

  • Certification

  • Publisher

    Channel 9




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First, you will study the basic concepts of networking and Local Area Networks. You will learn the key devices found on LANs such as hubs, switches, and routers, and how each of these devices functions to allow for effective and efficient communication on the LAN. You will then study the functions of IP addresses and how they are broken down into Network ID and Host ID components. The course will also cover the main network topologies, including Star, Bus, Ring and their functions.

Next, you will study the Ethernet - the most widely installed LAN technology - and learn how devices on an Ethernet network communicate with each other using Frames. You will then cover the seven layers of the OSI Model and learn how data is passed through them to allow two devices to communicate with each other. You will also study the TCP Model and learn about the similarities and differences between the OSI Model and the TCP Model in terms of their structure and functions.

Everybody uses computer networking for educational, business, or leisure purposes. However, not everyone understands what it is, how it functions, and what it does. This course will be of interest to all learners who would like to learn more about computer networking, in particular, the structure and function of LANs and the OSI Model. It will also be very useful to those who are considering computer networking as a career. So, have a look inside the course, and see if this is the next learning journey for you!

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Having completed this course you will be able to: - Define what Local Area Network (LAN) means. - Describe the key devices found on a LAN. - Explain how Hubs, Switches and Routers function. - Describe how Ethernet functions. - Describe the structure and function of IP Addresses. - List the seven layers of the OSI Model. - Describe the functions of each layer of the OSI Model. - List the four layers of the TCP Model. - Describe the functions of each layer of the TCP Model. - Explain the similarities and differences between the OSI Model and the TCP Model.

All Alison courses are free to enrol, study and complete. To successfully complete this Certificate course and become an Alison Graduate, you need to achieve 80% or higher in each course assessment. Once you have completed this Certificate course, you have the option to acquire official Certification, which is a great way to share your achievement with the world. Your Alison Certification is:

Ideal for sharing with potential employers - include it in your CV, professional social media profiles and job applications
An indication of your commitment to continuously learn, upskill and achieve high results
An incentive for you to continue empowering yourself through lifelong learning

Alison offers 3 types of Certification for completed Certificate courses:

Digital Certificate - a downloadable Certificate in PDF format, immediately available to you when you complete your purchase
Certificate - a physical version of your officially branded and security-marked Certificate, posted to you with FREE shipping
Framed Certificate - a physical version of your officially branded and security-marked Certificate in a stylish frame, posted to you with FREE shipping

All Certification is available to purchase through the Alison Shop. For more information on purchasing Alison Certification, please visit our faqs. If you decide not to purchase your Alison Certification, you can still demonstrate your achievement by sharing your Learner Record or Learner Achievement Verification, both of which are accessible from your Dashboard. For more details on our Certification pricing, please visit our Pricing Page.


Course Reviews

Adam A.
2 years ago
Adam A.

Great breakdown of the OSI & TCP models.

Yamkela Kopolo 9.
2 years ago
Yamkela Kopolo 9.

I recommend this course to anyone who want to have an understanding of how data travels on a network.

Philip D.
2 years ago
Philip D.

Very informative

Julius A.
2 years ago
Julius A.


Daniel  O.
2 years ago
Daniel O.

great enjoying learning new skills

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