Telnet

The Application Layer’s Role The Application Layer (Layer 7) is the layer the user interacts with. Its job is to provide specific services and translate user input into the structures required by the Transport Layer (Part 66). Protocol 1: DNS (Domain Name Service) Users prefer typing names (google.com) rather than IP addresses. DNS is the protocol that translates these human-readable names into the 4-byte IP addresses required by the Network Layer. ...