Nokia Certified Network Associate (NCNA) — Question 19

Which TCP/IP layer is responsible for providing the user's interface to the network?

Answer options

• A. the application services layer
• B. The transport layer
• C. The Internet protocol layer
• D. The network interface layer

Correct answer: D

Explanation

The correct answer is D, the network interface layer, as it provides the necessary interface for user applications to interact with the network hardware. The other layers, such as the transport layer and the Internet protocol layer, focus more on data transmission and routing rather than user interaction.