You are the architect of the ACME shipping group. You are responsible for designing a messaging system that will be used when users purchase goods, as such the messaging system needs to be reliable. Which of the following technologies would be the best for the design?
Service bus is correct as this is used as a reliable messaging service. Notification Hub will not suffice as this is used to send PUSH notifications on a large scale. Event Hub will not suffice as this is used to collect millions of events per second for processing. Event Grid would not suffice as this is used to provide developers access to the events generated by cloud infrastructure.