TCP and UDP | what is it and what’s the difference?
Why does the internet lag even when you have high speed?
Why do some DDoS attacks target TCP specifically?
Why did HTTP/3 move from TCP to UDP?
This video breaks down the real difference between TCP and UDP — not just at a surface level, but at the architectural level.
We explain:
• How TCP actually works (Three-Way Handshake, stateful connections)
• What’s inside a TCP packet (sequence numbers, acknowledgment numbers, flags, window size, checksum)
• Why UDP is faster
• What “stateful” vs “stateless” really means
• How congestion control and flow control operate
• Why HTTP/3 runs over QUIC and UDP
• How SYN flood and amplification attacks work
• How TCP and UDP directly impact cybersecurity
This is not a beginner-level summary.
This is internet architecture explained the way engineers think about it.
When you open YouTube, join an online game, send a message, or access a banking system — TCP and UDP are working behind the scenes.
Understanding these two protocols means understanding:
• Network reliability
• Latency vs throughput
• DDoS attack mechanics
• Firewall filtering
• NAT session tracking
• Packet analysis in Wireshark
• Real-world network security
TCP is about control, reliability, and managed communication.
UDP is about speed, minimal overhead, and low latency.
They don’t compete.
They solve different problems.
If you want to think like a network engineer — not just a user — this is where it starts.
🔒 Breach Lab — Architecture over stereotypes.
#breachlab
#TCP
#UDP
#CyberSecurity
#Networking
#HowTheInternetWorks
#HTTP3
#DDoS
#NetworkEngineering
#PacketAnalysis
#Wireshark
#ThreeWayHandshake
#InternetArchitecture