If you use either Telnet or FTP, which is the highest layer you are using to transmit data?
Correct Answer: A
Protocols like Telnet and FTP are considered Application Layer protocols in the OSI model. They operate at Layer 7, providing interfaces for user-level interaction and command control.
MTCNA Course Material - TCP/IP vs OSI Model:
"Telnet, FTP, HTTP are Application Layer protocols. They operate at the top of the OSI stack (Layer 7)." Rene Meneses MTCNA Study Guide - Protocol Layers:
"Telnet and FTP reside at the Application Layer. They initiate data exchange between hosts."
* Presentation and Session layers are not separately used in the TCP/IP model and are merged into the Application Layer.
* Transport (Layer 4) is used by these protocols (via TCP), but the protocol itself resides at the Application Layer.