Your question is TCP/IP and OSI Models. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain the TCP/IP model and the OSI model.
Asked in the Technical Phone Screen stage. Asked in both the second and third rounds of interviews.
Describe the layers in each model, map the models to each other, and explain how data moves during a typical client-to-server request. Include representative protocols or technologies at each layer, identify where common security controls operate, and explain how the models help troubleshoot a network failure.
