You have an Azure IoT Central application.
You need to connect IoT devices that use SAS tokens to the application without first registering the devices.
In which order should you perform the actions? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order.

Correct Answer:

Explanation
Graphical user interface, text, application Description automatically generated

Automatically register devices that use SAS tokens:
Step 1: Obtain the group primary key
1. Copy the group primary key from the SAS-IoT-Devices enrollment group:
Graphical user interface, application, Teams Description automatically generated

Step 2: Generate device SAS Keys.
2. Use the az iot central device compute-device-key command to generate the device SAS keys. Use the group primary key from the previous step.
Step 3: Flash unique credentials to the devices.
3. As an OEM, flash each device with the device ID, the generated device SAS key, and the application ID scope value. The device code should also send the model ID of the device model it implements.
Step 4: Connect the devices to IoT Central
4. When you switch on a device, it first connects to DPS to retrieve its IoT Central registration information.
5. The device uses the information from DPS to connect to, and register with, your IoT Central application.
Step 5: Associate the devices to a template and approve the connections.
The IoT Central application uses the model ID sent by the device to associate the registered device with a device template.
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-get-connected

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You plan to deploy a standard tier Azure IoT hub.
You need to perform an over-the-air (OTA) update on devices that will connect to the IoT hub by using scheduled jobs.
What should you use?

• A.a device-to-cloud message
• B.the device twin reported properties
• C.a cloud-to-device message
• D.a direct method

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How should you complete the GROUP BY clause to meet the Streaming Analytics requirements?

• A.GROUP BY HoppingWindow(Second, 60, 30)
• B.GROUP BY TumblingWindow(Second, 30)
• C.GROUP BY SlidingWindow(Second, 30)
• D.GROUP BY SessionWindow(Second, 30, 60)

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You have an Azure IoT hub and 15,000 IoT devices that monitor temperature. The IoT hub has four partitions.
Each IoT device sends a 1-KB message every five seconds.
You plan to use Azure Stream Analytics to process the telemetry stream and generate an alert when temperatures exceed a defined threshold.
You need to recommend the minimum number of streaming units to configure for Stream Analytics.
What should you recommend?

• A.1
• B.3
• C.6
• D.12

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You plan to deploy Azure Time Series Insights.
What should you create on iothub1 before you deploy Time Series Insights?

• A.a new message route
• B.a new consumer group
• C.a new shared access policy
• D.an IP filter rule

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