Reminder on TCP and UDP
TCP vs UDP
| TRANSMISSION CONTROL PROTOCOL | USER DATAGRAM PROTOCOL |
|---|---|
| Resource intensive | Lightweight |
| Reliable | Not Reliable |
| Slow | Fast |
| Guaranteed Transmission | No Guarantee |
| Packet reorder mechanism | No reorder mechanism |
| Flow Control | No Flow Control |
| Handshake | No Handshake |
| Point to Point | Multicast support |
| Connection Oriented | Connectionless |
| 20 Bytes Header | 8 Bytes Header |
CIDR (Classless Inter-Domain Routing)
Replacing Class A, B, C networks.