1. Layers and Protocols
Transport Layer User Datagram Protocol (UDP)
- UDP is an alternative to TCP, providing an unreliable datagram connection between applications.
Address Resolution Protocol (ARP)
- ARP is a layer 2 protocol used to map MAC addresses to IP addresses.
TCP/IP Reference Model
- TCP/IP is a four-layered suite of communication protocols, with TCP for Transmission Control Protocol and IP for Internet Protocol.
2. Networking Layers
- Host-to-Network Layer: Concerned with the physical transmission of data.
3. Layer 9 in Networking
- Layer 9 is often called the “blinders” layer, where organizational managers dictate network plans with limited information or based on past success from other companies.