What happens to a HTTP request when it leaves a client making a call and before reaching the server?

Question

Accepted Answer

HTTP request passes through multiple network layers before reaching the server.

HTTP request is first sent from client to local network router.
Router forwards request to Internet Service Provider's network.
Request then passes through multiple routers and switches in the internet backbone.
Finally, request reaches the server hosting the requested website or service.
Each network layer adds its own headers and metadata to the request.

Accepted Answer

API GATEWAY!

This question was the most weird question asked by an interviewer or just any person. I came up with multiple answers like tracing the path of the request saying that client would first call the DNS server to resolve the IP of the server and hit the server directly after that. He was not at all convinced and after banging by head for 10 minutes, in the end he told me that the answer was API GATEWAY! I told him that it is not mandatory to have an API gateway but he was in denial and shaking his head.  The worst part of this question was he was not helping to steer the discussion towards API gateway he was just stalling me and expected me to utter the words "API GATEWAY" . Again i want to say that this question was a joke.  He could have just asked me what do you know about API gateways?

What happens to a HTTP request when it leaves a client making a call and before reaching the server?

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