[May-2024] Study resources for the Valid AZ-220 Braindumps!
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The Microsoft AZ-220 exam is intended for professionals who have a solid understanding of IoT concepts and experience in programming languages such as C# or Python. Microsoft Azure IoT Developer certification exam is designed to validate the candidate’s knowledge and skills in implementing IoT solutions using Azure services such as Azure IoT Hub, Azure IoT Edge, and Azure Stream Analytics.
Test Characteristics
Validation AZ-220 is a job role-based specialty-level exam designed to hone test-takers’ skills at multiple levels. To achieve this aim, the test takes the help of a strict exam structure, which includes 40-60 multiple-choice questions that also might have other formats like best answers, case studies, etc. Next, the Microsoft AZ-220 exam aspirant must secure a minimum 70% score to come up with flying color in the official testing. In addition, an exam like this is available in the English, Japanese, Chinese (Simplified), and Korean languages globally. The standard fee for AZ-220 is $165, which should be paid as an exam voucher. Take note that the exam voucher once purchased is not refundable and non-transferable.
NEW QUESTION # 123
You have 1,000 devices that connect to a standard tier Azure IoT hub.
All the devices are commissioned and send telemetry events to the built-in IoT Hub endpoint. You configure message enrichment on the events endpoint and set the enrichment value to$twin.tags.ipV4.
When you inspect messages on the events endpoint, you discover that all the messages are stamped with a string of "$twin.tags.ipV4".
What are two possible causes of the issue? Each Answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. The ipV4 tag is a restricted twin property that is unavailable for message enrichment.
- B. Message enrichment cannot be added to messages going to a built-in endpoint.
- C. The device twin property value used for message enrichment is set to "$twin.tags.ipV4".
- D. The device twin path used for the value of the enrichment does not exist.
- E. A standard tier IoT hub does not support device twin properties in message enrichments.
- F. The device sending the message has no device twin.
Answer: D,F
Explanation:
In some cases, if you are applying an enrichment with a value set to a tag or property in the device twin, the value will be stamped as a string value. For example, if an enrichment value is set to $twin.tags.field, the messages will be stamped with the string "$twin.tags.field" rather than the value of that field from the twin. This happens in the following cases:
(C) Your IoT Hub is in the standard tier, but the device sending the message has no device twin.
(E) Your IoT Hub is in the standard tier, but the device twin path used for the value of the enrichment does not exist. For example, if the enrichment value is set to $twin.tags.location, and the device twin does not have a location property under tags, the message is stamped with the string "$twin.tags.location".
Your IoT Hub is in the basic tier. Basic tier IoT hubs do not support device twins.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-message-enrichments-overview
NEW QUESTION # 124
You use Azure Security Center in an Azure IoT solution.
You need to exclude some security events. The solution must minimize development effort. What should you do?
- A. Create an azureiotsecurity module twin and add configuration details to the module twin object.
- B. Add configuration details to the device twin object.
- C. Add a configuration to the code of the physical IoT device.
- D. Create an Azure function to filter security messages.
Answer: A
Explanation:
Properties related to every Azure Security Center for IoT security agent are located in the agent configuration object, within the desired properties section, of the azureiotsecurity module.
To modify the configuration, create and modify this object inside the azureiotsecurity module twin identity. Note: Azure Security Center for IoT's security agent twin configuration object is a JSON format object. The configuration object is a set of controllable properties that you can define to control the behavior of the agent.
These configurations help you customize the agent for each scenario required. For example, automatically excluding some events, or keeping power consumption to a minimal level are possible by configuring these properties.
Reference:
https://docs.microsoft.com/en-us/azure/asc-for-iot/how-to-agent-configuration
NEW QUESTION # 125
You have an Azure subscription that contains an Azure Time Series Insights environment. The environment has the properties shown in the following table.
You need to create a D.
Which two time series expressions can be correctly used as part of the query? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. $event['p1'] != NULL
- B. $event.p2 = 'abc'
- C. $event.p4.p5 = 0.0
- D. $event.p1.String = 'abc'
Answer: A,D
Explanation:
Example: $event['p1'] != NULL
['p1'] is the only token used. Interpreted as $event['p1'].Double != NULL Reference:
https://docs.microsoft.com/en-us/rest/api/time-series-insights/reference-time-series-expression-syntax
NEW QUESTION # 126
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. an IP filter rule
- C. a new consumer group
- D. a new shared access policy
Answer: C
Explanation:
Create a dedicated consumer group in the IoT hub for the Time Series Insights environment to consume from.
Each Time Series Insights event source must have its own dedicated consumer group that isn't shared with any other consumer. If multiple readers consume events from the same consumer group, all readers are likely to exhibit failures.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source- iothub
NEW QUESTION # 127
You have 100 devices that connect to an Azure IoT hub named Hub1. The devices connect by using a symmetric key.
You deploy an IoT hub named Hub2.
You need to migrate 10 devices from Hub1 to Hub2. The solution must ensure that the devices retain the existing symmetric key.
What should you do?
- A. Add a desired property to the device twin of Hub1. Recreate the device identity on Hub2.
- B. Disable the 10 devices on Hub1. Update the endpoint of the 10 devices to use Hub2.
- C. Add a desired property to the device twin of Hub2. Update the endpoint of the 10 devices to use Hub2.
- D. Recreate the device identity on Hub2. Update the endpoint of the 10 devices to use Hub2.
Answer: A
Explanation:
Desired properties. Used along with reported properties to synchronize device configuration or conditions. The solution back end can set desired properties, and the device app can read them. The device app can also receive notifications of changes in the desired properties.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins
NEW QUESTION # 128
You have an Azure IoT solution that includes a basic tier Azure IoT hub named Hub1 and a Raspberry Pi device named Device1. Device1 connects to Hub1.
You back up Device1 and restore the backup to a new Raspberry Pi device.
When you start the new Raspberry Pi device, you receive the following error message in the diagnostic logs of Hub1: "409002 LinkCreationConflict." You need to ensure that Device1 and the new Raspberry Pi device can run simultaneously without error.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Upgrade Hub1 to the standard tier.
- B. On the new Raspberry Pi device, modify the connection string.
- C. From Hub1, modify the device shared access policy.
- D. From Hub1, create a new IoT device.
- E. From Hub1, create a new consumer group.
Answer: B,D
Explanation:
Explanation/Reference:
Explanation:
Note: Symptoms
You see the error 409002 LinkCreationConflict in logs along with device disconnection or cloud-to-device message failure.
Cause
Generally, this error happens when IoT Hub detects a client has more than one connection. In fact, when a new connection request arrives for a device with an existing connection, IoT Hub closes the existing connection with this error.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-troubleshoot-error-409002- linkcreationconflict#symptoms
https://devblogs.microsoft.com/iotdev/understand-different-connection-strings-in-azure-iot-hub/
NEW QUESTION # 129
You have 1,000 devices that connect to an Azure IoT hub.
You discover that some of the devices fail to send data to the IoT hub.
You need to ensure that you can use Azure Monitor to troubleshoot the device connectivity issues.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Collect the JobsOperations, DeviceStreams, and FileUploadOperations logs.
- B. From the Diagnostics settings of the IoT hub, select Send to Log Analytic.
- C. Collect all metrics.
- D. From the Diagnostics settings of the IoT hub, select Archive to a storage account.
- E. Collect the DeviceTelemetry, Connections, and Routes logs.
Answer: B,E
Explanation:
The IoT Hub resource logs connections category emits operations and errors having to do with device connections. The following screenshot shows a diagnostic setting to route these logs to a Log Analytics workspace:
Note: Azure Monitor: Route connection events to logs:
IoT hub continuously emits resource logs for several categories of operations. To collect this log data, though, you need to create a diagnostic setting to route it to a destination where it can be analyzed or archived. One such destination is Azure Monitor Logs via a Log Analytics workspace, where you can analyze the data using Kusto queries.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-troubleshoot-connectivity
NEW QUESTION # 130
You need to configure loT module routing to meet the device requirements.
How should you complete the route? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
NEW QUESTION # 131
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.
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.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-overview
NEW QUESTION # 132
You need to configure Stream Analytics to meet the POV requirements.
What are two ways to achieve the goal? Each Answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Create an input in Stream Analytics that uses the built-in events endpoint of IoT Hub as the source.
- B. Route telemetry to an Azure Blob storage custom endpoint, and then configure the Blob storage as a reference input for Stream Analytics.
- C. Create a Stream Analytics module, and then deploy the module to all IoT Edge devices in the fleet.
- D. From IoT Hub, create a custom event hub endpoint, and then configure the endpoint as an input to Stream Analytics.
Answer: A,D
Explanation:
Explanation
NEW QUESTION # 133
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.
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.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-overview
NEW QUESTION # 134
You have three Azure IoT hubs named Hub1, Hub2, and Hub3, a Device Provisioning Service instance, and an IoT device named Device1.
Each IoT hub is deployed to a separate Azure region. Device enrollment uses the Lowest latency allocation policy.
The Device Provisioning Service uses the Lowest latency allocation policy. Device1 is auto-provisioned to Hub1 by using the Device Provisioning Service. Device1 regularly moves between regions.
You need to ensure that Device1 always connects to the IoT hub that has the lowest latency. What should you do?
- A. Configure device attestation that uses X.509 certificates.
- B. Configure the re-provisioning policy.
- C. Disenroll and reenroll Device1.
- D. Implement device certificate rolling.
Answer: B
Explanation:
Automated re-provisioning support.
Microsoft added first-class support for device re-provisioning which allows devices to be reassigned to a different IoT solution sometime after the initial solution assignment. Re-provisioning support is available in two options:
Factory reset, in which the device twin data for the new IoT hub is populated from the enrollment list instead of the old IoT hub. This is common for factory reset scenarios as well as leased device scenarios. Migration, in which device twin data is moved from the old IoT hub to the new IoT hub. This is common for scenarios in which a device is moving between geographies.
Reference:
https://azure.microsoft.com/en-us/blog/new-year-newly-available-iot-hub-device-provisioning-service-features/
NEW QUESTION # 135
You are troubleshooting an Azure IoT hub.
You discover that some telemetry messages are dropped before they reach downstream processing. You suspect that IoT Hub throttling is the root cause.
Which log in the Diagnostics settings of the IoT hub should you use to capture the throttling error events?
- A. Routes
- B. C2DCommands
- C. DeviceTelemetry
- D. Connections
Answer: C
Explanation:
The device telemetry category tracks errors that occur at the IoT hub and are related to the telemetry pipeline. This category includes errors that occur when sending telemetry events (such as throttling) and receiving telemetry events (such as unauthorized reader). This category cannot catch errors caused by code running on the device itself.
Note: The metric d2c.telemetry.ingress.sendThrottle is the number of throttling errors due to device throughput throttles.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-monitor-resource-health
NEW QUESTION # 136
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a Standard tier Azure IoT hub and a fleet of IoT devices.
The devices connect to the IoT hub by using either Message Queuing Telemetry Transport (MQTT) or Advanced Message Queuing Protocol (AMQP).
You need to send data to the IoT devices and each device must respond. Each device will require three minutes to process the data and respond.
Solution: You use direct methods and check the response.
Does this meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
IoT Hub provides three options for device apps to expose functionality to a back-end app:
Twin's desired properties for long-running commands intended to put the device into a certain desired state. For example, set the telemetry send interval to 30 minutes.
Direct methods for communications that require immediate confirmation of the result. Direct methods are often used for interactive control of devices such as turning on a fan.
Cloud-to-device messages for one-way notifications to the device app.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-c2d-guidance
NEW QUESTION # 137
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:
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/monitor-iot-hub
NEW QUESTION # 138
You have an Azure IoT hub that uses a Device Provisioning Service instance.
You create a new individual device enrollment that uses symmetric key attestation.
Which detail from the enrollment is required to auto provision the device by using the Device Provisioning Service?
- A. the hostname of the IoT hub
- B. the registration ID of the enrollment
- C. the primary key of the enrollment
- D. the device identity of the IoT hub
Answer: D
NEW QUESTION # 139
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this question, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have devices that connect to an Azure IoT hub. Each device has a fixed GPS location that includes latitude and longitude.
You discover that a device entry in the identity registry of the IoT hub is missing the GPS location.
You need to configure the GPS location for the device entry. The solution must prevent the changes from being propagated to the physical device.
Solution: You use an Azure policy to apply tags to a resource group. Does the solution meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
Explanation
Instead add the desired properties to the device twin.
Note: Device Twins are used to synchronize state between an IoT solution's cloud service and its devices.
Each device's twin exposes a set of desired properties and reported properties. The cloud service populates the desired properties with values it wishes to send to the device. When a device connects it requests and/or subscribes for its desired properties and acts on them.
Reference:
https://azure.microsoft.com/sv-se/blog/deep-dive-into-azure-iot-hub-notifications-and-device-twin/
NEW QUESTION # 140
You have an Azure subscription that contains an Azure IoT hub and two Azure IoT Edge devices named Device1 and Device2.
You need to ensure that the IoT hub only accepts connections from Device1 and Device2.
What should you configure?
- A. a private endpoint connection
- B. Azure API Management
- C. Azure Active Directory (Azure AD) Identity Protection
- D. a gateway device
Answer: A
Explanation:
Ingress connectivity to IoT Hub using Azure Private Link.
A private endpoint is a private IP address allocated inside a customer-owned VNet via which an Azure resource is reachable. Through Azure Private Link, you can set up a private endpoint for your IoT hub to allow services inside your VNet to reach IoT Hub without requiring traffic to be sent to IoT Hub's public endpoint. Similarly, your on-premises devices can use Virtual Private Network (VPN) or ExpressRoute peering to gain connectivity to your VNet and your IoT Hub (via its private endpoint). As a result, you can restrict or completely block off connectivity to your IoT hub's public endpoints by using IoT Hub IP filter or the public network access toggle. This approach keeps connectivity to your Hub using the private endpoint for devices.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/virtual-network-support
NEW QUESTION # 141
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Microsoft AZ-220 exam is designed to test the candidate's knowledge of Azure IoT services and how to implement them in real-world scenarios. AZ-220 exam covers topics such as IoT solution architecture, Azure IoT Hub, Azure IoT Edge, Azure Stream Analytics, and Azure Time Series Insights. AZ-220 exam also tests the candidate's ability to create and deploy IoT solutions using Azure IoT services.
AZ-220 Dumps Updated Practice Test and 205 unique questions: https://www.2pass4sure.com/Microsoft-Certified-Azure-IoT-Developer-Specialty/AZ-220-actual-exam-braindumps.html
Latest Microsoft Certified: Azure IoT Developer Specialty AZ-220 Actual Free Exam Questions: https://drive.google.com/open?id=1Rk188dQo7TZzaT-MgKuQl1dh72rhx7cU