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Microsoft AZ-220 certification exam provides an excellent opportunity for developers to enhance their skills and knowledge in IoT development on the Azure platform. With this certification, professionals can demonstrate their expertise in building and deploying secure and scalable IoT solutions. As the demand for IoT solutions continues to grow, having this certification can open up new career opportunities and help professionals stay competitive in the job market.

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NEW QUESTION # 62
You are building an Azure loT solution that will include an Azure loT hub and will process environmental data for a multi-story building by using Azure Stream Analytics. The loT devices for the solution will provide the following data:
* Temperature
* Building
* Room
* Floor
You need to identify which data formats the loT devices can use to send the data as an array. What should you identify?

A. JSON only OC.
B. XML only
C. Avro and JSON only
D. Avro, JSON. and XML
E. Avro only

Answer: A

NEW QUESTION # 63
You have an Azure IoT hub named Hub1 and a root certification authority (CA) named CA1. Hub1 is configured to use X.509 certificate device authentication.
You and a custom manufacturing partner complete a proof of possession flow.
You plan to deploy IoT devices manufactured by the custom manufacturing partner. Each device will have a certificate generated by an intermediate C You need to ensure that the custom devices can connect successfully to Hub1.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
https://www.prepawaypdf.com/uploads/imgs/AZ-220-0f411c1526cf97c75cb3f26d1f11cedb.jpg

Answer:

Explanation:
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1 - Sign the intermediate CA certificate by using the CA1 certificate.
2 - Sign the device certificate by using the intermediate CA
3 - Deploy the certificate chain to the device.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/concepts-x509-attestation

NEW QUESTION # 64
You have an Azure IoT hub named Hub1 and an Azure Time Series Insights environment named tsi1. Tsi1 connects to Hub1. The solution has been operational for 6 months.
Tsi1 is configured as shown in the following exhibit.
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Hub1 receives 1 million messages per day. Each message is up to 1 KB and is formatted as JSON.
Hub1 has seven days of retained telemetry.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
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Answer:

Explanation:
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Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-overview

NEW QUESTION # 65
What should you do to identify the cause of the connectivity issues?

A. Enable the collection of the Connections diagnostics logs and set up alerts for the connected devices count metric.
B. Monitor the connection status of the device twin by using an Azure function.
C. Send cloud-to-device messages to the IoT devices.
D. Use the heartbeat pattern to send messages from the IoT devices to iothub1.

Answer: A

Explanation:
Scenario: You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.
To log device connection events and errors, turn on diagnostics for IoT Hub. We recommend turning on these logs as early as possible, because if diagnostic logs aren't enabled, when device disconnects occur, you won't have any information to troubleshoot the problem with.
Step 1:
1. Sign in to the Azure portal.
2. Browse to your IoT hub.
3. Select Diagnostics settings.
4. Select Turn on diagnostics.
5. Enable Connections logs to be collected.
6. For easier analysis, turn on Send to Log Analytics (see pricing).
Step 2:
Set up alerts for device disconnect at scale
To get alerts when devices disconnect, configure alerts on the Connected devices (preview) metric.
Reference:
https://docs.microsoft.com/bs-cyrl-ba/azure/iot-hub/iot-hub-troubleshoot-connectivity Provision and manage devices Question Set 2

NEW QUESTION # 66
You have an loT solution that includes an Azure IoT hub named Hub1 and 20 loT devices. Hub1 sends cloud-to-device messages to the 10T devices.
You need to track the number of messages that are resubmitted for delivery to an IoT device. Which metric should you monitor?

A. C2D messages rejected
B. C2D Messages Expired
C. C2D message deliveries completed
D. C2D messages abandoned

Answer: D

NEW QUESTION # 67
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