Dive into the intricacies of TCP (Transmission Control Protocol) with this comprehensive 3-hour 30-minute video course. Explore the differences between TCP and UDP, analyze network traffic using Wireshark, and understand the TCP 3-Way Handshake. Learn to build TCP and UDP servers using Node.js, and examine advanced concepts such as TCP Slow Start, TCP Fast Open, and TCP Half-Open. Investigate security concerns like SYN Flood Attacks and discover how major applications like WhatsApp handle millions of TCP connections. Gain insights into choosing between UDP and TCP for backend applications, and explore Chrome's implementation of raw TCP and UDP connections. By the end of this course, you'll have a deep understanding of TCP's role in network communication and its impact on backend application performance.