Computer Networking Fundamentals
Free Beginner course · 10 lessons · 3 weeks · Certificate on completion
Understand what happens between the browser and the server — the foundation of cloud and security work. Across 10 lessons you'll move from fundamentals to a portfolio-ready outcome — at your own pace, with quizzes after each lesson and a final exam to certify your mastery.
What you'll learn
- The OSI and TCP/IP models
- IP addressing and subnetting
- Switching and routing
- DNS end to end
- HTTP, TLS, and certificates
- Firewalls and NAT
Skills you'll pick up
- The OSI and TCP/IP models
- IP addressing and subnetting
- Switching and routing
- DNS end to end
- HTTP, TLS, and certificates
- Firewalls and NAT
Tools covered
- Networking
- Real-world projects
- Quizzes
- Final exam
Course modules
Module 1: The OSI and TCP/IP models
Module 1 of Computer Networking Fundamentals. 3 lessons · 3h
Module 2: IP addressing and subnetting
Module 2 of Computer Networking Fundamentals. 3 lessons · 3h
Module 3: Switching and routing
Module 3 of Computer Networking Fundamentals. 3 lessons · 3h
Module 4: DNS end to end
Module 4 of Computer Networking Fundamentals. 1 lessons · 1h
Lessons in this course
- The OSI and TCP/IP models
- IP addressing and subnetting
- Switching and routing
- DNS end to end
- HTTP, TLS, and certificates
- Firewalls and NAT
- Wi-Fi and common issues
- Troubleshooting like a pro
- Networking: Deep dive 9
- Networking: Deep dive 10
Instructor
Carla Mendes — Network Engineer
Carla Mendes is a Network Engineer with years of hands-on experience teaching Networking to thousands of learners worldwide.
Certificate
Finish every lesson and pass the final exam to earn a free, verifiable Learnera certificate for Computer Networking Fundamentals. It can be downloaded as a PDF and shared on LinkedIn.
Career outcomes
Median global salary $105,000 per year · median India salary ₹14,00,000 per year · 96,443 open roles worldwide
- Networking Specialist
- Senior Networking Lead
- Networking Consultant
Frequently asked questions
Is the Computer Networking Fundamentals course free?
Yes. Every Learnera course, including Computer Networking Fundamentals, is completely free — lessons, quizzes, the final exam, and the certificate.
How long does Computer Networking Fundamentals take?
10 lessons, typically completed in 3 weeks at a comfortable pace.
Do I get a certificate?
Yes — pass the final exam and you receive a free, verifiable certificate you can share on LinkedIn.