Updated in May 2025.

This course now features Coursera Coach! A smarter way to learn with interactive, real-time conversations that help you test your knowledge, challenge assumptions, and deepen your understanding as you progress through the course. Dive into the foundational concepts of networking with this comprehensive course. From understanding network models to mastering physical network installation, this course equips you with the essential knowledge to navigate and troubleshoot modern network infrastructures effectively. Gain a solid grasp of the OSI model, MAC addresses, IP addressing, and more, setting the stage for advanced networking expertise. The journey begins with an introduction to core network models and progresses to cabling and topology fundamentals, exploring coaxial, twisted-pair, and fiber-optic technologies. You'll then delve into Ethernet basics, learning about frame structures, device interconnections, and standards like Gigabit Ethernet. Each section builds incrementally, ensuring a clear understanding of networking layers and components. Next, you’ll transition to physical network installation. Learn structured cabling techniques, testing methods, and troubleshooting strategies to handle real-world scenarios. This hands-on approach ensures you're well-prepared for practical challenges in the field, enhancing your ability to design and maintain robust network systems. Ideal for aspiring IT professionals, this course is designed for beginners with no prior networking experience. Whether preparing for certifications like CompTIA Network+ or seeking to advance your IT career, you’ll find the content approachable yet thorough.