The TCP/IP Model

Describe the four layers of the TCP/IP model: application layer, transport layer, internet layer, and link layer.
Explain that the application layer is where network applications (like web browsers or email clients) operate.
Explain that the transport layer establishes communication between hosts and agrees on settings like packet size.
Explain that the internet layer addresses, packages, and routes data packets across the network.
Explain that the link layer houses network hardware (such as the NIC) and where OS device drivers operate.

What you need to know