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 - [ ] `custom domains`
 
 As described in [Microsoft Docs: Hosting a Restful-API with CORS in AAS](https://docs.microsoft.com/en-us/azure/app-service/app-service-web-tutorial-rest-api): The Answer should be CORS (Cross Origin Ressource Sharing)
+
+#### Q54. Bindings in Azure Function triggers have a direction property that is always __.
+
+- [ ] parallel 
+- [ ] out 
+- [ ] asynchronous 
+- [x] in 
+
+[Source: LinkedIn practice mode](https://i.imgur.com/tn3RrVW.png)
+
+#### Q55. You are selecting a cloud messaging solution for your multimedia news app. The app routes news items to the appropriate services for processing and delivery to subscribers. Requirements for the solution are as follows: Events should be routed to the appropriate service to process event; events must be routed to multiple services when necessary; and only relevant events should be routed to a service for processing. Which solution should you use? 
+
+- [ ] Event Grid 
+- [ ] Service Bus 
+- [ ] Event Hub 
+- [ ] Queue Storage