Question #106
You are developing a sales application that will contain several Azure cloud services and will handle different components of a transaction. Different cloud services will process customer orders, billing, payment, inventory, and shipping.
You need to recommend a solution to enable the cloud services to asynchronously communicate transaction information by using REST messages.
What should you include in the recommendation?
A. Azure Service Bus
B. Azure Blob storage
C. Azure Notification Hubs
D. Azure Application Gateway
Correct Answer: A
Asynchronous messaging can be implemented in a variety of different ways: with queues, topics, and subscriptions. Azure Service Bus supports asynchronism via a store and forward mechanism.
Service Bus is a transactional message broker and ensures transactional integrity for all internal operations against its message stores. All transfers of messages inside of Service Bus, such as moving messages to a dead-letter queue or automatic forwarding of messages between entities, are transactional.
Incorrect Answers:
C: Azure Notification Hubs is a massively scalable mobile push notification engine for quickly sending millions of notifications to iOS, Android, Windows, or Kindle devices.
Reference:
https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-transactions https://docs.microsoft.com/en-us/azure/service-bus-messaging/service-bus-async-messaging https://docs.microsoft.com/en-us/azure/architecture/guide/technology-choices/messaging