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UdemyBestseller on UdemyIT & SoftwarePaid courseAll LevelsCertificate

Introduction to Computer Networks for Non-Techies (Udemy.com)

Learn Networking Fundamentals: 13 Cisco Packet Tracer Labs, OSI Model, TCP/IP, Subnetting, Routers, Switches, and More

Created by: Alton Teaches LLC

Last updated February 2026

Our take

Based on the ratings of 15,586 students, a sample of their written reviews and the syllabus, as the course stood in February 2026. No course pays to be reviewed.

Alton Hardin's course is a broad networking primer that runs about 18.6 hours over 217 lectures. It starts with topologies, cabling and the OSI model, then moves through TCP/IP, binary math, subnetting, IPv6, DNS, switches, routers, wireless and security. Thirteen labs in Cisco Packet Tracer let learners build small networks, from two PCs up to multi-subnet setups. It is aimed at business people and career changers, though it also works as a first step toward Network+ or CCNA.

Reviewers mostly praise the plain explanations and the visuals. One says the slides are simple to understand, another loves how the visuals break down complex material, and a newcomer says the instructor explains the content very well. The course holds a 4.6 rating across 15,586 reviews, with 9,157 of them five stars. Complaints are few. A reviewer with a programming background found the teaching indirect and confusing. Two reviewers who work in tech call the title a misnomer, and one says it is not really for non-techies.

The course was last updated in February 2026, which is recent enough for a fundamentals topic, and more than 82,000 students have enrolled. It is paid, but the length and the labs make it a fair deal for a first networking course. Expect concepts and guided labs, not deep device configuration. Anyone aiming at CCNA will need a second course after this one. For true beginners, it is an easy recommendation.

Best forBusiness folks and career changers who want networking basics plus Packet Tracer labs before Network+ or CCNA.
Skip it ifYou already work in IT and want CCNA-level router configuration, not fundamentals.

Pros

  • Thirteen Packet Tracer labs build from two PCs to multi-subnet networks
  • Reviewers like the simple slides and visuals that make dense topics easy to follow
  • Covers OSI, subnetting, IPv6, DNS, VLANs and wireless in one place
  • Updated February 2026 and backed by over 15,000 reviews at a 4.6 rating

Cons

  • Some IT workers say the title misleads and it is not really for non-techies
  • One programmer found the explanations indirect and confusing in places
  • Fundamentals only, so CCNA-level router configuration needs a further course
Very well explained in simple and easy to understand language.
Mila Richwine, a student

Suits true beginners best; the All Levels tag only fits IT staff who want a refresher on fundamentals.

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What you will learn

  • Understand how computer networks work including networking fundamentals, networking basics, protocols, and the OSI Model
  • Build and configure networks using Cisco Packet Tracer simulation software through 13 hands-on labs
  • Understand IP addressing and learn subnetting basics including binary math, subnet masks, and IPv4/IPv6 fundamentals
  • Understand network devices including switches, routers, wireless access points, firewalls, and DHCP servers
  • Learn the TCP/IP protocol suite including DNS, DHCP, HTTP, FTP, SSH, TCP, UDP, and application layer protocols
  • Understand VLANs (Virtual LANs) and basic network segmentation concepts
  • Understand routing fundamentals including static routing, dynamic routing, and routing protocols (RIP, OSPF, BGP)
  • Learn wireless networking basics including 802.11 standards and wireless security protocols (WEP, WPA, WPA2, WPA3)
  • Understand the network planning and design process for small businesses
  • Learn network security fundamentals including firewalls, VPNs, DMZ, and the CIA Triad
  • Understand common networking commands and basic network concepts
  • Learn Software-Defined Networking (SDN) fundamentals
  • Build a strong foundation for CompTIA Network+ or Cisco CCNA certification preparation
  • Analyze real-world business network design scenarios through case studies
  • Understand network cabling basics including twisted pair, fiber optic, and Ethernet standards
  • Practice explaining networking concepts through 12 AI-powered study sessions with your virtual study partner

Course content

28 sections · 217 lectures · 19 hours of video 21 quizzes, 9 articles

  1. 1Course Introduction 4 free previews9 lectures · 20 min
  2. 2Overview and Benefits of Computer Networks 2 free previews6 lectures · 30 min
  3. 3Course Primer: How Computer Networks Work 3 free previews12 lectures · 1 quiz · 55 min
  4. 4Network Topologies 1 free preview5 lectures · 1 quiz · 23 min
  5. 5Networking Devices 2 free previews14 lectures · 1 quiz · 51 min
  6. 6Network Cabling 2 free previews11 lectures · 1 quiz · 1.4 hours
  7. 7The OSI Model 2 free previews9 lectures · 1 quiz · 36 min
  8. 8Planning a Network 2 free previews12 lectures · 44 min
  9. 9Introduction to TCP/IP 1 free preview4 lectures · 1 quiz · 10 min
  10. 10TCP/IP Network Layer Protocols 1 free preview6 lectures · 1 quiz · 35 min

Who it is for

The instructor says it suits

  • Non-technical professionals and business owners who need to understand computer networking without becoming network engineers
  • Complete beginners with no IT or networking background who want to learn networking fundamentals and networking basics from scratch
  • Business managers and professionals who need working knowledge of how their company's network infrastructure operates
  • Aspiring IT professionals starting their networking career and need foundational knowledge in computer networks
  • Students preparing for CompTIA Network+ or Cisco CCNA certification who need to master core networking concepts first
  • Anyone who has been intimidated by computer networking and wants a clear, beginner-friendly introduction
  • Professionals transitioning into IT roles who need to understand networking basics for their new career
  • Students who learn best through hands-on practice and want to build real networks using Cisco Packet Tracer (not just watch lectures)

What you need before you start

  • A Basic Understanding of Computers
  • A Desire to Learn
  • For the Course Labs, the Ability to Download and Install Cisco Packet Tracer

How it compares

Against the other 1,182 rated Udemy courses in IT & Software on CourseDuck:

  • Rating4.6 out of 5higher than 67% of them
  • Reviews15,586#24 of 1,183 by number of reviews
  • Length18.6 hourslonger than 87% of them
  • Last updatedFebruary 2026more recently than 67% of them

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Course Description

This course contains the use of artificial intelligence. Specifically, this course utilizes Udemy’s AI-Powered interactive Role Play conversation simulator to enhance your learning experience via customized scenarios to help you practice what you’re learning.


LEARN COMPUTER NETWORKING FROM ONE OF UDEMY'S TOP IT INSTRUCTORS - NO TECHNICAL BACKGROUND REQUIRED

Are you a non-techie who feels intimidated by computer networking? Do you freeze when someone mentions routers, switches, IP addresses, or subnetting? Are you a business professional who needs to understand how networks work without becoming a network engineer?

You've come to the right place.

Computer networks power everything in our connected world—from sending emails and streaming videos to running businesses and securing critical infrastructure. Yet for most people, networking remains a confusing maze of technical jargon and complexity.

This course changes that. Over 76,000 students have used this course to master networking fundamentals—many with zero technical background. And you can too.


WHY THIS COURSE IS DIFFERENT: HANDS-ON LEARNING WITH CISCO PACKET TRACER

Unlike typical networking courses that only teach theory through endless PowerPoint slides, this course gets you building actual networks using Cisco Packet Tracer—industry-standard network simulation software used by networking students and professionals worldwide.

You'll download the software for free (works on Windows and Mac) and complete 13 hands-on labs. Start simple by connecting two PCs, then progressively build complete multi-subnet networks with routers, switches, VLANs, DHCP servers, DNS servers, wireless access points, and firewalls.

Plus, you'll watch live demonstrations on Windows, Linux, and Mac systems, and reinforce your learning through 12 AI-powered study sessions where you practice explaining networking concepts out loud.

This isn't passive learning. You'll build networks and see networking principles work in real-time.


WHAT STUDENTS ARE SAYING

"I am currently studying cybersecurity at WGU. I completed Alton's course before enrolling and when I got stuck in my network foundations classes, I would refer back to this course. I learned more about networking from Alton's networking course on Udemy than in two college-level networking classes. Alton does a magnificent job delivering the material. It is slow-paced enough so even the newest of beginners can understand it. The structure and roll-out of the course flows smoothly and in perfect order. I 100% recommend this course to anyone looking to understand networking." — Jammie Williams ★★★★★

"This is a great course. I enjoyed it a great deal. I love the fact that Cisco Packet Tracer was used to allow for a better understanding of networking. I can't state enough how informative it is and it was a lot of fun also. Anyone who is struggling with networking, very highly recommend." — Christian Bell ★★★★★

"This is by far the best beginners networking course that I have come across and Alton describes and teaches networking concepts brilliantly in my opinion. Networking has always been something that I have struggled with but since taking this course I understand networking concepts a lot better and the labs help a lot as well. Money well spent." — Andrea A ★★★★★

"As someone with limited technical background, I was a bit intimidated by the idea of learning computer networking, but this course broke everything down in such a simple and engaging way. The instructor made complex concepts easy to understand, using practical examples that really helped me grasp the fundamentals. I now feel much more confident in my networking knowledge, and it has greatly enhanced my understanding of how networks function. Highly recommend this course to anyone wanting a clear, beginner-friendly introduction!" — Rustam Shahverdiyev ★★★★★

"I really enjoyed this course! The instructor explains key networking concepts clearly and concisely, without going into unnecessary technical depth that's not needed at this level. The course is well-structured and focuses on the essentials, delivering the core knowledge in a very precise and accessible way. I would highly recommend this course to anyone, especially those just starting their education or career in any area of the tech industry. This is foundational knowledge that everyone entering the field should have." — Bojan Marinkovic ★★★★★


WHAT YOU'LL RECEIVE IN THIS COURSE

  • 18.5 Hours of On-Demand HD Video Lectures (Over 180 lectures across 28 comprehensive sections)

  • 13 Cisco Packet Tracer Hands-On Labs (Build real networks in a safe simulation environment—free software, requires Cisco registration)

  • 12 AI-Powered Role Play Study Sessions (Practice explaining networking concepts with your virtual study partner)

  • Live Demonstrations Throughout (DNS, DHCP, ARP commands, SSH, RDP, FTP servers, Wireshark packet analysis, network cable creation, and more)

  • 2 Real-World Business Case Studies (Complete network designs for a law firm and dental practice)

  • 21 Section Quizzes to Reinforce Your Learning

  • Complete Course Materials (Downloadable PDF versions of all lecture slides)


COMPREHENSIVE CURRICULUM: WHAT YOU'LL LEARN

Network Fundamentals & How Computer Networks Work

Understand computer networking basics, including types of networks (LAN, WAN, MAN, PAN), networking protocols, the OSI Model (all 7 layers), TCP/IP Model, MAC addresses, IP addresses, Ethernet fundamentals, duplex communication, and transmission types.

Networking Devices & Infrastructure

Learn about network interface cards (NICs), hubs, switches, wireless access points, range extenders, routers, modems, all-in-one SOHO devices, media converters, firewalls, DHCP servers, and VoIP endpoints.

Network Topologies & Cabling

Master physical vs. logical topologies, wired network topologies (bus, star, ring, mesh), wireless topologies, coaxial cabling, twisted pair copper cabling, fiber optic cabling, Ethernet standards, wiring standards (568A & 568B), cable types (straight-through, crossover, rollover), and plenum-rated cabling.

The OSI Model & TCP/IP Protocol Suite

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Instructor Details

Alton Teaches LLC

About Us

Alton Teaches LLC is dedicated to providing IT training to aspiring IT professionals.

KISS. Teaching Approach

We follow a “Keep It Simple Student” approach to learning, breaking down complex topics into simplified discussions.

We Focus on the Fundamentals

One of our central philosophies is to teach you to crawl before you can walk. Why is this important? You can’t be a successful IT practitioner without mastering the fundamentals first.

We’re Here to Help You

Whether you’re brand new to IT or a seasoned IT professional, we welcome everybody. In fact, we cater to those looking to transition to IT.

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Reviews

4.6

15,586 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Hannalong Thongsouk on 9/9/2026

Great course. Excellent class materials, hands on labs, and clear illustrations that make the concepts easy to understand. The instructor put a lot of effort into creating the course.

By Muhammad Hilal Bin Md Akip on 9/7/2026

The contents that is provided by Alton is excellent. He breaks down the core concepts of all of the different devices and their roles is. This is a course for those who is starting out fresh.

By Lilian Amaral on 6/17/2026

Great content! I don't think it's really for "non-techies", but since I work on IT department, these contents are really informative

By Omar Lammas on 4/12/2026

I appreciate the effort invested in preparing and producing this course, and it is clear that a significant amount of work has gone into the content. However, to be honest, the teaching style did not meet my expectations. Many fundamental concepts were presented in a way that felt unnecessarily complex and indirect, which led to confusion rather than clarity. Despite having a technical background as a programmer, I found several parts difficult to follow. This raises concerns about how accessible the material would be for complete beginners or non-technical learners. When referring to other sources, I found that the same concepts can be explained in a much simpler and more structured way, with a clearer logical progression, without the need for such complexity. Overall, I believe the course suffers from issues in presenting ideas in a clear and logically structured order, which directly impacted the learning experience. I do not recommend purchasing this course.

By Sevilay Çelik on 3/11/2026

Kurs sonunda anlatılan Network Design konusu, başlangıç seviyesindeki bir insan için üst düzey kalmaktadır.Bu konunun bu kursta olması anlamsız geldi. Ayrıca, dersler bazı yerlerde oldukça uzatılmıştır, yine de eğitimcinin emekleri için teşekkür ediyorum.

By Tony Roberts on 3/9/2026

I really need to learn the correct way to navigate the computer and the computer language and just have a better understanding on what to do

By Hector Cuevas on 3/6/2026

Just what I was expecting for a networking refresher, I would have liked to be explained the basic and most essential certifications and be pointed to a second program for advanced networking and the most essential certifications to be able to start working as an intern.

By Patrick Porter on 3/4/2026

Really happy with this course! Lectures are clear, precise, well paced, and very helpful. For example: shortly after starting the course, enough had been demystified and explained about ethernet, cabling, and typical home network hardware that I felt comfortable buying the appropriate cables and connectors and installing them throughout my house by myself. We were 100% wireless before, but now we've got a wired LAN if we want it, too. I'll be buying more from this author :)

By Carrie Posing on 2/9/2026

This was a great course! I learned a ton from Instructor Alton and look forward to trying out more courses from the same instructor.

By Paul Bagshaw on 1/7/2026

It was a great course. Alton does a tremendous job explaining things in detail but simplistic as well. It will assist me in my job quite alot.

By Shane Soules on 11/22/2020

Long Intro, really just want to do the course as quickly as possible. Content only is what I care about. unfortunately, I do not have a lot of time to do this course and still work.

By Charu Patel on 11/8/2020

Great Instructor!

Showing 12 of 309 reviews

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Quality Score

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Overall Score : 92 / 100