What is Network? (Part 6) - The Receipt That Never Arrived! | ACK, Timeout & Retransmission

Description: In Part 5, the village learned to warn each other and reroute around broken paths. But that raised a bigger question — how do you know your message even reached the other side? 📜 In Part 6 ("The Receipt That Never Arrived!"), a young messenger loses a return receipt in a river — and without knowing it, sets off a chain of confusion that leaves an entire village wondering if the same news is old or new. In this video, we break down these real-world networking concepts through our village story: Acknowledgment (ACK) – Why a sender waits for confirmation that its data actually arrived. Timeout – Why that wait isn't forever — only until a fixed deadline. Retransmission – What happens when no ACK arrives in time, and the sender resends the data, even if it already got through. Duplicate Data – The classic networking headache: how a receiver ends up with the same message twice, and struggles to tell "new" from "repeated." First, enjoy the suspenseful story, and then stay for the deep concept breakdown at the end! 📌 Series Playlist & Previous Parts: ▶️ Part 1 (The First Connection):    • What is Network? | Networking Series – Mod...   ▶️ Part 2 (Rules of the Road):    • Networking Module 1 Part 2: Why Chaos Brok...   ▶️ Part 3 (When the Connection Broke!):   • What is Network? (Part 3) - When the Conne...   ▶️ Part 4 (The Secret of the Old Map!):    • What is Network? (Part 4) - The Secret of ...   ▶️ Part 5 (The Night the Road Closed!):   • What is Network? (Part 5) - The Night the ...