[Jan 23, 2022] Get Free Updates Up to 365 days On Developing AZ-220 Braindumps
Best Quality Microsoft AZ-220 Exam Questions
Exam Preparation
The Microsoft Learning Platform has everything that the candidates need to completely prepare for their certification test. You can explore free resources as well as paid training courses. You will also find the exam questions that will help you evaluate your level of preparedness for the actual test. All in all, you can look at the following options:
- Practice Test
The applicants can find this option on the official website. This training tool is very useful in evaluating their knowledge before taking the real test. It is recommended to spend ample time going over the questions to understand the patterns of the actual exam questions and how to answer them appropriately to achieve the passing score.
- Paid Training Course
This is an instructor-led training course that is designed to provide all the learners with the knowledge and skills needed to create and maintain the Cloud and edge portions associated with Azure IoT solutions. The course is not for free, but it focuses on the complete coverage of Azure IoT services, including IoT Hub, Azure Stream Analytics, Device Provisioning Services, and Time Series Insights, among others.
- Free Resources
These are free online learning paths that are designed to help the students gain the required skills for obtaining the certification. There are four learning paths with different modules for each track and you can explore all of them for free. The paths that are identified for Microsoft AZ-220 include Introduction to Azure IoT, Securely Connecting the IoT Devices to Cloud, Building the Intelligence Edge with the Azure IoT Edge, and Developing the IoT Solutions with the Azure IoT Central.
How to Register For Exam AZ-220: Microsoft Azure IoT Developer?
NEW QUESTION 10
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 11
You have an Azure IoT Central application that monitors 100 IoT devices.
You need to generate alerts when the temperature of a device exceeds 100 degrees. The solution must meet the following requirements:
Minimize costs
Minimize deployment time
What should you do?
- A. Perform a data export to Azure Blob storage and create an Azure function.
- B. Create a rule that uses an email action.
- C. Create an email property in the device templates.
- D. Perform a data export to Azure Service Bus.
Answer: B
Explanation:
You can create rules in IoT Central that trigger actions, such as sending an email, in response to telemetrybased conditions, such as device temperature exceeding a threshold.
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/howto-configure-rules-advanced
NEW QUESTION 12
You have an Azure IoT hub.
You need to enable Azure Defender for IoT on the IoT hub.
What should you do?
- A. From the Security settings of the loT hub, select Secure your loT solution.
- B. From Defender, configure security alerts.
- C. From Defender, add a security policy.
- D. From the Diagnostics settings of the loT hub, select Add diagnostic setting.
Answer: A
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/defender-for-iot/device-builders/quickstart-onboard-iot-hub
NEW QUESTION 13
You have an Azure IoT hub.
You need to check whether the IoT hub was affected by an outage.
What should you select in the Azure portal? To answer, select the appropriate option in the answer area.
NOTE: Each correct selection is worth one point.
- A. Metrics
- B. Alerts
- C. Resource health
- D. Diagnostic settings
Answer: C
NEW QUESTION 14
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. Add configuration details to the device twin object.
- B. Create an Azure function to filter security messages.
- C. Add a configuration to the code of the physical IoT device.
- D. Create an azureiotsecurity module twin and add configuration details to the module twin object.
Answer: D
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 15
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. Azure IoT Central application and a template for the retail industry
- B. an Azure IoT Device Simulation from Azure IoT Solution Accelerator
- C. an Azure function, an IoT Hub device SDK, and a timer trigger
- D. an Azure IoT Edge gateway configured as a protocol translation gateway
Answer: B
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 16
You have an Azure IoT Central application.
You add an IoT device named Oven1 to the application. Oven1 uses an IoT Central template for industrial ovens.
You need to send an email to the managers group at your company as soon as the oven temperature falls below 400 degrees.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. From IoT Central, create a telemetry rule for the template.
- B. Create a SendGrid account in the same resource group as the IoT Central application.
- C. Add a condition that has Time Aggregation set to Off.
- D. Add a condition that has Aggregation set to Minimum.
- E. Add the Manager role to the IoT Central application.
Answer: A,C
Explanation:
Devices use telemetry to send numerical data from the device. A rule triggers when the selected telemetry crosses a specified threshold.
E: To create a telemetry rule, the device template must include at least one telemetry value. The rule monitors the temperature reported by the device and sends an email when it falls below 400 degrees.
B: Configure the rule conditions.
Conditions define the criteria that the rule monitors. In this tutorial, you configure the rule to fire when the temperature exceeds 70°F.
1. Select Temperature in the Telemetry dropdown.
2. Next, choose Is less than as the Operator and enter 400 as the Value.
3. Optionally, you can set a Time aggregation. When you select a time aggregation, you must also select an aggregation type, such as average or sum from the aggregation drop-down.
Without aggregation, the rule triggers for each telemetry data point that meets the condition.
With aggregation, the rule triggers if the aggregate value of the telemetry data points in the time window meets the condition.
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/tutorial-create-telemetry-rules
NEW QUESTION 17
You have an Azure IoT hub that uses a Device Provisioning Service instance.
You have 1,000 legacy IoT devices that only support MAC address or serial number identities. The device do NOT have a security feature that can be used to securely identify the device or a hardware security module (HSM).
You plan to deploy the devices to a secure environment.
You need to configure the Device Provisioning Service instance to ensure that all the devices are identified securely before they receive updates.
Which attestation mechanism should you choose?
- A. X.509 certificates
- B. symmetric key attestation
- C. Trusted Platform Module (TPM) 1.2 attestation
Answer: B
Explanation:
A common problem with many legacy devices is that they often have an identity that is composed of a single piece of information. This identity information is usually a MAC address or a serial number. Legacy devices may not have a certificate, TPM, or any other security feature that can be used to securely identify the device. The Device Provisioning Service for IoT hub includes symmetric key attestation. Symmetric key attestation can be used to identify a device based off information like the MAC address or a serial number.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-legacy-device-symm-key
NEW QUESTION 18
You create a new IoT device named device1 on iothub1. Device1 has a primary key of Uihuih76hbHb.
How should you complete the device connection string? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: iothub1
The Azure IoT hub is named iothub1.
Box 2: azure-devices.net
The format of the device connection string looks like:
HostName={YourIoTHubName}.azure-devices.net;DeviceId=MyNodeDevice;SharedAccessKey={YourSharedAccessKey} Box 1: device1 Device1 has a primary key of Uihuih76hbHb.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/quickstart-control-device-dotnet
NEW QUESTION 19
You create an Azure Stream Analytics job that has the following query.
The job is configured to have an Azure IoT Hub input and an output to an Azure function.
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:
Explanation:
Box 1: Yes
All time handling operations in Azure Stream Analytics are in UTC.
Box 2: No
Tumbling windows are a series of fixed-sized, non-overlapping and contiguous time intervals.
Box 3: Yes
Reference:
https://docs.microsoft.com/en-us/stream-analytics-query/time-management-azure-stream-analytics
NEW QUESTION 20
You need to recommend the format of telemetry messages to meet the POV requirements.
What should you recommend?
- A. XML
- B. Avro
- C. JSON
Answer: C
Explanation:
Scenario: POV Requirements
* Ensure that all message content during this phase is human readable to simplify debugging.
Avro uses a binary format, so it is not human readable.
The more lightweight JSON (Javascript object notation) has become a popular alternative to XML for various reasons. A couple obvious ones are:
* Less verbose- XML uses more words than necessary
* JSON is faster- Parsing XML software is slow and cumbersome.
Reference:
https://blog.cloud-elements.com/json-better-xml
Process and manage data
Question Set 3
NEW QUESTION 21
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.String = 'abc'
- B. $event['p1'] != NULL
- C. $event.p4.p5 = 0.0
- D. $event.p2 = 'abc'
Answer: A,B
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 22
You create a new IoT device named device1 on iothub1. Device1 has a primary key of Uihuih76hbHb.
How should you complete the device connection string? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/quickstart-control-device-dotnet
NEW QUESTION 23
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. Disenroll and reenroll Device1.
- B. Configure the re-provisioning policy.
- C. Implement device certificate rolling.
- D. Configure device attestation that uses X.509 certificates.
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 24
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 an Azure IoT solution that includes an Azure IoT hub, a Device Provisioning Service instance, and
1,000 connected IoT devices.
All the IoT devices are provisioned automatically by using one enrollment group.
You need to temporarily disable the IoT devices from the connecting to the IoT hub.
Solution: From the Device Provisioning Service, you disable the enrollment group, and you disable device entries in the identity registry of the IoT hub to which the IoT devices are provisioned.
Does the solution meet the goal?
- A. No
- B. Yes
Answer: B
Explanation:
You may find it necessary to deprovision devices that were previously auto-provisioned through the Device Provisioning Service.
In general, deprovisioning a device involves two steps:
1. Disenroll the device from your provisioning service, to prevent future auto-provisioning. Depending on whether you want to revoke access temporarily or permanently, you may want to either disable or delete an enrollment entry.
2. Deregister the device from your IoT Hub, to prevent future communications and data transfer. Again, you can temporarily disable or permanently delete the device's entry in the identity registry for the IoT Hub where it was provisioned.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-unprovision-devices
NEW QUESTION 25
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 "$twin.tags.ipV4".
What are two possible causes of the issue? Each Answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Message enrichment cannot be added to messages going to a built-in endpoint.
- B. The device sending the message has no device twin.
- C. The device twin property value used for message enrichment is set to "$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 ipV4 tag is a restricted twin property that is unavailable for message enrichment.
Answer: B,D
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 26
You have an Azure IoT Central application that includes a Device Provisioning Service instance.
You need to connect IoT devices 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.
Answer:
Explanation:
1 - Generate device credentials
2 - Flash unique credentials to the devices
3 - Connect the devices to lot Central
4 - Associate the devices to a tamplate and approve the connections
5 - Obtain the credential
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-get-connected
NEW QUESTION 27
Your company is creating a new camera security system that will use Azure IoT Hub.
You plan to use an Azure IoT Edge device that will run Ubuntu Server 18.04.
You need to configure the IoT Edge device.
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:
1 - Run the following commands
2 - From Iot Hub,create an IoT Edge device registry entry.
3 - Add the connection string to..
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-install-iot-edge-linux
NEW QUESTION 28
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 29
You have an Azure IoT hub.
You plan to implement IoT Hub events by using Azure Event Grid.
You need to send an email when the following events occur:
* Device Created
* Device Deleted
* Device Connected
* Device Disconnected
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. From the IoT hub, configure an event subscription that has Service Bus Queue as the Endpoint Type.
- B. From the IoT hub, configure an event subscription that has API management as the Endpoint Type.
- C. From the IoT hub, configure an event subscription that has Web Hook as the Endpoint Type.
- D. Create an Azure logic app that has a Request trigger.
Answer: C,D
Explanation:
For non-telemetry events like DeviceConnected, DeviceDisconnected, DeviceCreated and DeviceDeleted, the Event Grid filtering can be used when creating the subscription.
C: Azure Event Grid enables you to react to events in IoT Hub by triggering actions in your downstream business applications.
A trigger, such as a Request trigger, is a specific event that starts your logic app.
Reference:
https://docs.microsoft.com/en-us/azure/event-grid/publish-iot-hub-events-to-logic-apps
NEW QUESTION 30
You have an Azure IoT hub.
You need to recommend a solution to scale the IoT hub automatically. What should you include in the recommendation?
- A. Create an SMS alert in IoT Hub for the Total number of messages used metric.
- B. Create an Azure function that retrieves the quota metrics of the IoT hub.
- C. Emit custom metrics from the IoT device code and create an Azure Automation runbook alert.
- D. Configure autoscaling in Azure Monitor.
Answer: B
Explanation:
Note: IoT Hub is scaled and priced based on an allowed number of messages per day across all devices connected to that IoT Hub. If you exceed the allowed message threshold for your chosen tier and number of units, IoT Hub will begin rejecting new messages. To date, there is no built-in mechanism for automatically scaling an IoT Hub to the next level of capacity if you approach or exceed that threshold.
Reference:
https://docs.microsoft.com/en-us/samples/azure-samples/iot-hub-dotnet-autoscale/iot-hub-dotnet-autoscale/
NEW QUESTION 31
You have an Azure IoT hub that uses a Device Provision Service instance.
You plan to deploy 100 IoT devices.
You need to confirm the identity of the devices by using the Device Provision Service.
Which three device attestation mechanisms can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Trusted Platform Module (TPM) 1.2
- B. Symmetric key
- C. Trusted Platform Module (TPM) 2.0
- D. X.509 certificates
- E. Device Identity Composition Engine (DICE)
Answer: B,C,D
Explanation:
The Device Provisioning Service supports the following forms of attestation:
* X.509 certificates based on the standard X.509 certificate authentication flow.
* Trusted Platform Module (TPM) based on a nonce challenge, using the TPM 2.0 standard for keys to present a signed Shared Access Signature (SAS) token. This does not require a physical TPM on the device, but the service expects to attest using the endorsement key per the TPM spec.
* Symmetric Key based on shared access signature (SAS) Security tokens, which include a hashed signature and an embedded expiration.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/concepts-service#attestation-mechanism
NEW QUESTION 32
You have an Azure IoT hub.
You plan to deploy 1,000 IoT devices by using automatic device management.
The device twin is shown below.
You need to configure automatic device management for the deployment.
Which target Condition and Device Twin Path should you use? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Explanation:
Box 1: tags.engine.warpDriveType='VM105a'
Use tags to target twins. Before you create a configuration, you must specify which devices or modules you want to affect. Azure IoT Hub identifies devices and using tags in the device twin, and identifies modules using tags in the module twin.
Box 2: properties.desired.warpOperating
The twin path, which is the path to the JSON section within the twin desired properties that will be set.
For example, you could set the twin path to properties.desired.chiller-water and then provide the following JSON content:
{
"temperature": 66,
"pressure": 28
}
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-automatic-device-management
NEW QUESTION 33
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:
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/iot-edge-as-gateway
NEW QUESTION 34
You have 10 IoT devices that connect to an Azure IoT hub named Hub1.
From Azure Cloud Shell, you run az iot hub monitor-events --hub-name Hub1and receive the following error message: "az iot hub: 'monitor-events' is not in the 'az iot hub' command group. See 'az iot hub
--help'."
You need to ensure that you can run the command successfully.
What should you run first?
- A. az iot hub monitor-feedback --hub-name Hub1
- B. az extension add -name azure-cli-iot-ext
- C. az iot hub configuration list --hub-name Hub1
- D. az iot hub generate-sas-token --hub-name Hub1
Answer: B
Explanation:
Execute az extension add --name azure-cli-iot-ext once and try again.
In order to read the telemetry from your hub by CLI, you have to enable IoT Extension with the following commands:
Add: az extension add --name azure-cli-iot-ext
Reference:
https://github.com/MicrosoftDocs/azure-docs/issues/20843
NEW QUESTION 35
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