Network Programming in C#: Building UDP Chat and IoT Applications

Master the fundamentals of connectionless networking to build fast chat applications and distributed systems using modern C# and UDP sockets.

4.5 (170) ⏱ 1h 16m 📚 9 lessons

About this course

Modern applications, from online games to real-time IoT sensors, rely on fast and efficient data transmission. Understanding how to communicate directly over a network is a fundamental skill for any developer building distributed systems. This course provides a clear path for programmers to move beyond basic local code and start creating software that talks across the wire. You will progress from understanding basic networking protocols to implementing functional communication systems. By focusing on UDP sockets within the .NET ecosystem, you will learn how to handle data packets, manage asynchronous communication, and build the backbone of real-time applications where speed is the primary requirement. What you'll learn: - Understand the core principles of the OSI model and the specific role of the Transport Layer. - Apply C# socket classes to create connectionless communication between distributed endpoints. - Implement asynchronous patterns using async and await to ensure responsive and scalable network code. - Build a functional chat system that sends and receives data packets across a network. - Configure data serialization to prepare information for transmission over UDP. - Practice handling common networking challenges like packet loss and out-of-order delivery. The course begins with essential networking terminology and the conceptual differences between TCP and UDP. It then transitions into practical implementation, guiding you through setting up listeners and clients using modern .NET syntax and best practices for resource management. This course is designed for beginner developers with a basic grasp of C# who want to explore the world of network programming. No prior experience with sockets or low-level networking is required. Start building your first distributed network application today through clear, text-based instruction.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 30-day refund
    No questions asked
  • Short & focused
    1h 16m of practical content

Reviews (3)

Ugnė Butkutė LT Verified learner
★ 5 · 2025-12-27T11:25:57+00:00

A good introduction. The structure was mostly clear, but I wish there were a few more real-world examples. Still, learned a lot.

David Lee KE Verified learner
★ 2 · 2025-05-03T21:37:57+00:00

Pretty informative. I liked the practical application examples, though the initial setup took longer than I expected.

Abigail Harris US
★ 3 · 2025-02-28T04:40:57+00:00

Good introduction to the topic. The structure was logical, and most of the examples were relevant, though I wished for more depth in certain areas.

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What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

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Yes — full refund within 30 days, no questions asked.

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Forever. Once you purchase, the course is yours to revisit anytime.

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Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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