Your company plans to deploy several million sensors that will upload data to Azure. You need to identify which Azure resources must be created to support the planned solution?

Question

i am an azure student and i would like to know where i can find correct answers to my practice questions like below:

Your company plans to deploy several million sensors that will upload data to Azure.
You need to identify which Azure resources must be created to support the planned solution.
Which two Azure resources should you identify? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Azure Data Lake
B. Azure Queue storage
C. Azure File Storage
D. Azure IoT Hub
E. Azure Notification Hubs

Please somebody help me , thanks.

Answer 1

Hello @Ricardo Quirino ,

Where is this question coming from?

My two cents:

Only two resources should be selected.

The first one is easy: the IoT Hub. Because this resource is able to register all devices and it support ingest of telemetry.

The second resource is not directly clear.

We see two message queue options (Queue storage and notification hub).

Because the IoT Hub already is a kind of queue, I would not select them.

We also see two storage options (data lake and file storage).

The file storage is a strange option for storing telemetry messages (why do I need the file directory structure?).

So I propose to select the Azure Data lake for persisted storage of the telemetry.

Azure Blob Storage is a common solution for cold storage in an IoT solution.

Regards,

Sander

Answer 2

Hi @Ricardo Quirino ,

Agree with @Sander van de Velde inputs.

Azure IoT Hub:
IoT Hub (Internet of things Hub) provides data from millions of sensors. IoT Hub is a managed service, hosted in the cloud, that acts as a central message hub for bi-directional communication between your IoT application and the devices it manages. You can use Azure IoT Hub to build IoT solutions with reliable and secure communications between millions of IoT devices and a cloud-hosted solution backend. You can connect virtually any device to IoT Hub.

Azure Data Lake Gen2:
There are two storage services IoT Hub can route messages to -- Azure Blob Storage and Azure Data Lake Storage Gen2 (ADLS Gen2) accounts. Azure Data Lake Storage accounts are hierarchical namespace-enabled storage accounts built on top of Azure Blob Storage. Both of these use blobs for their storage. Azure Datalake Storage can be used to process large amount of data and perform bigdata analytics on top of that.

Please refer to below helpful docs:

https://learn.microsoft.com/azure/iot-hub/about-iot-hub
https://learn.microsoft.com/azure/iot-hub/iot-hub-devguide-messages-d2c

Hope this clarifies.

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