Your question is TCP/IP Architecture Explanation. 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 tcp/ip architecture and how they work
Describe the TCP/IP layers, the role of each protocol, and how data moves from an application on one host to an application on another. Trace a request through DNS, routing, TCP connection establishment, data transfer, and termination, and identify relevant security controls and failure modes.