Introduction to Computer Networks for Non-Techies

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

Understand all seven layers of the OSI Model from Physical to Application, including data encapsulation and de-encapsulation processes. Learn TCP/IP protocols, including network layer protocols (ARP, IPv4, IPv6, ICMP), transport layer protocols (TCP, UDP, ports, sockets), and application layer protocols (DNS, DHCP, NTP, SSH, RDP, FTP, SFTP, SMTP, POP3, IMAP, HTTP, HTTPS).

IP Addressing & Subnetting Mastery

Master IPv4 fundamentals and binary math basics, IP address classification and subnet masks, the power of 2's, public vs. private IP addresses, loopback addresses, APIPA (Automatic Private IP Addressing), subnetting Class C networks with multiple worked examples and visualization, IPv6 addressing and transmission types, IPv6 address types, and IPv4-to-IPv6 translation and compatibility.

IP Address Assignment & DNS Fundamentals

Learn static vs. dynamic IP address assignment, DHCP configuration and operation, Windows Server 2016 DHCP server demonstration, DNS hierarchy and common record types (A, AAAA, MX, CNAME, NS, PTR), and NSLookup command demonstrations.

Understanding Switches

Understand how switches work, collision domains, broadcast domains, CSMA/CD, managed vs. unmanaged switches, MAC address learning, Virtual LANs (VLANs), Layer 3 switches, port mirroring, and Power over Ethernet (PoE).

Understanding Routers

Learn the routing process, routing tables, static vs. dynamic routing, Interior Gateway Protocols (RIP, OSPF, EIGRP), Border Gateway Protocol (BGP), administrative distance, and default routes.

Network Segmentation

Master Network Address Translation (NAT), Demilitarized Zone (DMZ), port forwarding, and Access Control Lists (ACLs).

Wireless Networking & IoT

Explore wireless service set types (IBSS, BSS, ESS, MBSS), wireless frequencies and channels (2.4GHz, 5GHz), 802.11 standards (a/b/g/n/ac/ax - including Wi-Fi 6), MIMO technology, wireless deployment strategies, wireless security protocols (WEP, WPA, WPA2, WPA3), and Internet of Things (IoT) basics.

WAN Broadband Services

Understand cable broadband, fiber broadband, DSL (Digital Subscriber Line), cellular broadband, dedicated leased lines, Metro Ethernet, satellite internet, and dial-up connections.

Network Security

Learn the CIA Triad, least privilege principle, acceptable use policies, defense in depth, intranet/extranet/internet differences, VPNs, firewalls, web proxy servers, and network intrusion detection and prevention systems.

Software-Defined Networking (SDN)

Understand SDN fundamentals, SDN architecture, Software-Defined WAN (SD-WAN), and the benefits of SDN.

Network Planning & Design

Master the complete network planning methodology, including understanding business needs, establishing requirements, defining improvements, securing buy-in and resources, addressing hidden costs, and the systematic 7-step design process from identifying uses to building the network.

13 HANDS-ON CISCO PACKET TRACER LABS

• Lab #1: Installing Cisco Packet Tracer

• Lab #2: Connecting Two PCs Together

• Lab #3: Create Physical Wired Topologies

• Lab #4: Creating a Simple Home LAN

• Lab #5: Exploring Network Cabling

• Lab #6: Assigning Static IP Addresses to LAN

• Lab #7: Create Two LANs on Different Subnets

• Lab #8: Utilizing DHCP to Assign IP Addresses to LAN

• Lab #9: DNS and Web Server Configuration

• Lab #10: Setting Up Two Departmental VLANs

• Lab #11: Configuring Routers with RIP

• Lab #12: Adding a Wireless Access Point to a LAN

• Lab #13: Configure Server Firewall to Block ICMP Requests

Each lab includes both starter files and completed solution files. If you get stuck, you can compare your work to the working solution. Labs are carefully sequenced to match your growing knowledge throughout the course.

REAL-WORLD BUSINESS CASE STUDIES

Analyze two complete network design scenarios to understand how networking principles apply in actual organizations:

Case Study #1: H&M Law Firm

Walk through a complete network design for a professional law firm, understanding their business requirements, selecting appropriate equipment, designing the network topology, and creating a comprehensive network proposal.

Case Study #2: San Bernardo Dentistry

Design a network for a dental practice, addressing their specific needs for patient data security, appointment systems, digital imaging, and multi-location connectivity.

BY THE END OF THIS COURSE, YOU'LL BE ABLE TO:

• Understand how computer networks work and explain networking fundamentals to colleagues or clients

• Build and configure networks using Cisco Packet Tracer simulation software

• Explain the OSI Model and TCP/IP protocol suite, including how data flows through network layers

• Subnet IPv4 networks using subnet masks and calculate network addresses, broadcast addresses, and host ranges

• Understand how switches and routers work, including VLANs, routing tables, and routing protocols

• Configure DHCP servers and understand dynamic IP address assignment

• Understand DNS hierarchy and common record types

• Design networks for small businesses using a systematic planning methodology

• Understand wireless networking standards (802.11 a/b/g/n/ac/ax) and security protocols (WEP, WPA, WPA2, WPA3)

• Explain network security concepts including firewalls, VPNs, DMZ, and intrusion detection systems

• Use network troubleshooting tools and understand common networking protocols

• Build a strong foundation for CompTIA Network+ or Cisco CCNA certification preparation

MY "KEEP IT SIMPLE, STUDENT" (KISS) TEACHING METHODOLOGY

I've spent years perfecting a teaching approach specifically for beginners: breaking down complex networking concepts into clear, jargon-free explanations. Every topic assumes no prior knowledge and builds systematically.

This isn't a course that talks down to you or overwhelms you with unnecessary technical depth. It's precisely calibrated to give you exactly the knowledge you need at the right pace—whether you're a complete beginner or have some basic computer knowledge.

WHY LEARN COMPUTER NETWORKING NOW?

Understanding computer networking is foundational knowledge for anyone in business or technology. Whether you're troubleshooting connectivity issues, making infrastructure decisions, preparing for IT certifications, or simply want to understand how the digital world connects, this knowledge is essential in today's hyper-connected world.

The networking skills gap continues to grow, with organizations desperately seeking professionals who understand network fundamentals. This course gives you that essential foundation.

PREVIEW OVER 1 HOUR OF THIS COURSE FOR FREE

Scroll down and click the blue "Preview" buttons on 25+ free sample lectures. See my teaching style and hands-on approach before you enroll.

READY TO BUILD YOUR NETWORKING FOUNDATION?

Join over 76,000 students who've mastered networking fundamentals through this course. Start building real networks today with 13 Cisco Packet Tracer hands-on labs, 12 AI-powered study sessions, and 18.5 hours of expert instruction.

See you inside the course!

Alton