How a request actually reaches shipment-api.
Every mechanism this chapter covered sits on one ordered path — not independent, unrelated features.
1
Global external ALBHTTPS request arrives
2
Cloud CDNChecks cache for static assets first
3
Cloud NGFWFirewall policy evaluated before forwarding
4
shipment-api (Cloud Run)Backend serves the request
Use this as the answer template for "walk me through what happens when a user hits your API" — naming mechanisms in the actual execution order is a stronger answer than the order they were taught.