Welcome to the Network Fundamentals course — the perfect place to start your CCNA journey. You’ll learn how networks work, what devices do, and how data travels through them. With clear lessons, simple examples, and hands-on labs, you’ll get the practical skills needed to move confidently into more advanced networking topics.
About
The Network Fundamentals course introduces the key concepts every network engineer must understand — from the OSI model and network layers to common devices like switches, routers, and firewalls. You’ll explore real-world topologies, learn how to read packet flows, and even build your own homelab with Cisco Modeling Labs (CML) or EVE-NG.
Each section builds on the previous one, making sure you develop both theoretical understanding and practical skills. By the end, you’ll know how to explain, design, and test small network setups confidently.
What you'll learn
- Understand how networks communicate: Learn how devices exchange data and how each OSI layer contributes to that process.
- Recognize core network devices: Discover how switches, routers, firewalls, and other components fit into a network.
- Measure and analyze performance: Learn about bandwidth, latency, and throughput, and how to optimize them.
- Build and test your own homelab: Get guided practice using Cisco Modeling Labs and EVE-NG.
Skills you'll gain
Who is this for?
Perfect for absolute beginners and anyone preparing for the Cisco CCNA 200-301 exam. No prior experience required — just curiosity and motivation to learn how networks really work.
Course Info
- Learning Path: CCNA Enterprise Infrastructure
- Exam: 200-301 CCNA v1.1
- Prerequisites: None (Beginner-friendly)
- Number of lessons: 30
- Number of diagrams: 250+
- Created: 05 Jun 2023
- Updated: 16 Oct 2025
Course Structure
The course includes multiple sections: Introduction to Networking, Network Components, Network Topology Architectures, and Build Your CCNA Home Lab. Each section contains lessons, labs, and quizzes designed to reinforce your learning and test your progress.
The goal is not just to pass the exam, but to truly understand how networking works. You’ll connect theory to practice and gain the confidence to work with real Cisco networks.
Outcomes
After finishing this course, you’ll be able to explain how data moves through a network, identify and describe network components, and build small lab topologies on your own. You’ll have the solid foundation needed for the next CCNA-level topics like Ethernet, VLANs, IP addressing, and routing.
