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How to study the AZ-220:Microsoft Azure IoT Developer Exam

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With the aid of our Microsoft AZ-220 exam preparation to improve your grade and change your states of life and get amazing changes in career, everything is possible. It all starts from our Microsoft AZ-220 learning questions. Our Microsoft AZ-220 training questions are the accumulation of professional knowledge worthy practicing and remembering.

Suitable Candidate Profile

Think of AZ-220 if you are considering becoming a Microsoft Azure Developer in the near future. Plus, those who want to explore the world of IoT in the best possible way can aim at this exam to sustain the exam journey.

Microsoft Azure IoT Developer Exam Certification Details:

Exam Name	Microsoft Certified - Azure IoT Developer Specialty
Duration	120 mins
Exam Code	AZ-220
Passing Score	700 / 1000
Number of Questions	40-60

Microsoft Azure IoT Developer Sample Questions (Q88-Q93):

NEW QUESTION # 88
You are troubleshooting device connections to and disconnections from an Azure IoT hub.
You configure diagnostic logging for the IoT hub to send to Log Analytics.
You need to generate a report that displays the device connection and disconnection events.
How should you complete the query? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
Answer: ** Explanation:

Explanation
Graphical user interface, text Description automatically generated

Box 1: ResourceProvider ==
Query to monitor your IoT hub connectivity Errors: Identify device connection errors.
AzureDiagnostics
| where ResourceProvider == "MICROSOFT.DEVICES" and ResourceType == "IOTHUBS"
| where Category == "Connections" and Level == "Error"
Box 2: ResourceType ==
Box 3: Category ==
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/monitor-iot-hub
NEW QUESTION # 89**
You have an Azure IoT solution that includes an Azure IoT hub.
You plan to deploy 10,000 IoT devices.
You need to validate the performance of the IoT solution while 10,000 concurrently connected devices stream telemetry. The solution must minimize effort.
What should you deploy?

• A. an Azure IoT Device Simulation from Azure IoT Solution Accelerator
• B. Azure IoT Central application and a template for the retail industry
• C. an Azure IoT Edge gateway configured as a protocol translation gateway
• D. an Azure function, an IoT Hub device SDK, and a timer trigger

Answer: A Explanation:
Explanation
The IoT solution accelerators are complete, ready-to-deploy IoT solutions that implement common IoT scenarios. The scenarios include connected factory and device simulation.
Use the Device Simulation solution accelerator to run simulated devices that generate realistic telemetry. You can use this solution accelerator to test the behavior of the other solution accelerators or to test your own custom IoT solutions.
Reference:
https://docs.microsoft.com/en-us/azure/iot-accelerators/about-iot-accelerators
NEW QUESTION # 90
You have an Azure subscription that contains an Azure IoT hub, an Azure IoT Edge gateway, and 1,000 leaf devices. The leaf devices use a custom communication protocol that is NOT supported by the IoT hub.
You need to configure the gateway to meet the following requirements:
* Minimize the number of connections between the gateway and the IoT hub.
* Support addressing cloud-to-device messages to individual leaf devices.
How should you configure the gateway? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer: ** Explanation:

Explanation
Graphical user interface, text, application, table Description automatically generated

Box 1: Protocol translation
In the protocol translation gateway pattern, only the IoT Edge gateway has an identity with IoT Hub. The translation module receives messages from downstream devices, translates them into a supported protocol, and then the IoT Edge device sends the messages on behalf of the downstream devices.
Box 2: Advanced MessageQueuing Protocol (AMQP)
Connection multiplexing - All devices connecting to IoT Hub through an IoT Edge gateway can use the same underlying connection. This multiplexing capability requires that the IoT Edge gateway uses AMQP as its upstream protocol.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/iot-edge-as-gateway
NEW QUESTION # 91**
You need to add Time Series Insights to the solution to meet the pilot requirements.
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.
Answer: ** Explanation:

Explanation

Step 1: Provision Time Series Insights
Select Provision new IoT Hub to create a new IoT hub.
Step 2: Route telemetry from IoT Hub to a custom event.
Step 3: Add a data access policy to Time Series Insights for the dashboard web app Scenario: Requirements. Pilot Requirements During the pilot phase, devices will be deployed to 10 offices. Each office will have up to 1,000 devices.
During this phase, you will add Azure Time Series Insights in parallel to Stream Analytics to support real-time graphs and queries in a dashboard web app.
The pilot deployment must minimize operating costs.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-update-create-environment
NEW QUESTION # 92**
You have 20 devices that connect to an Azure IoT hub.
You open Azure Monitor as shown in the exhibit.

You discover that telemetry is not being received from five IoT devices.
You need to identify the names of the devices that are not generating telemetry and visualize the data.
What should you do first?

• A. Configure diagnostics for Routes and stream the logs to Azure Event Hubs.
• B. Add the Number of throttling errors metric and archive the logs to an Azure storage account.
• C. Configure diagnostics for Connections and send the logs to Azure Log Analytics.
• D. Add the Telemetry messages sent metric and archive the logs to an Azure Storage account.

Answer: C Explanation:
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.
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


Reference:
https://docs.microsoft.com/bs-cyrl-ba/azure/Iot-hub/iot-hub-troubleshoot-connectivity
NEW QUESTION # 93
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