Answer :
Final answer:
IoT Hub promises 99.9% availability for sending and receiving messages and performing CRUD operations.
Explanation:
The subject of this question is Computers and Technology and it is at a College level. The question is asking about the promise made by IoT Hub regarding the ability to send and receive messages from registered devices and perform CRUD operations. The answer to the question is that IoT Hub promises 99.9% availability for these operations.
Learn more about IoT Hub here:
https://brainly.com/question/37987502
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