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AZ-220 Dump Free

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  • AZ-220 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.
  • Access Full AZ-220 Dump Free

AZ-220 Dump Free – 50 Practice Questions to Sharpen Your Exam Readiness.

Looking for a reliable way to prepare for your AZ-220 certification? Our AZ-220 Dump Free includes 50 exam-style practice questions designed to reflect real test scenarios—helping you study smarter and pass with confidence.

Using an AZ-220 dump free set of questions can give you an edge in your exam prep by helping you:

  • Understand the format and types of questions you’ll face
  • Pinpoint weak areas and focus your study efforts
  • Boost your confidence with realistic question practice

Below, you will find 50 free questions from our AZ-220 Dump Free collection. These cover key topics and are structured to simulate the difficulty level of the real exam, making them a valuable tool for review or final prep.

Question 1

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 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 add the desired properties to the device twin.
Does the solution meet the goal?

A. Yes

B. No

 


Suggested Answer: B

Instead add tags to the device twin. Desired properties are synced, while tags are not.
Incorrect Answers:
A: 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://docs.microsoft.com/de-de/azure/iot-hub/iot-hub-devguide-device-twins
https://azure.microsoft.com/sv-se/blog/deep-dive-into-azure-iot-hub-notifications-and-device-twin/

Question 2

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. Azure API Management

B. Identity Protection in Microsoft Azure Active Directory (Azure AD), part of Microsoft Entra

C. a Network Security Group

D. an IP filter

 


Suggested Answer: B

 

Question 3

You have an Azure IoT solution that includes an Azure IoT hub and a Device Provisioning Service instance.
Several enrolled devices are stolen.
You need to prevent the stolen devices from connecting to the IoT solution. The solution must prevent the devices from re-enrollment and must be implemented as soon as possible.
What should you do?

A. Delete the devices from the IoT hub.

B. Delete the device enrollments from the Device Provisioning Service.

C. Disable the devices in the IoT hub and delete from the IoT hub.

D. Disable the device enrollments in the Device Provisioning Service and delete the devices from the IoT hub.

 


Suggested Answer: B

 

Question 4

You have an existing Azure IoT hub.
You use IoT Hub jobs to schedule long running tasks on connected devices.
Which two operations do the IoT Hub jobs support directly? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. Trigger Azure functions.

B. Invoke direct methods.

C. Update desired properties.

D. Send cloud-to-device messages.

E. Disable IoT device registry entries.

 


Suggested Answer: BC

Consider using jobs when you need to schedule and track progress any of the following activities on a set of devices:
✑ Invoke direct methods
Update desired properties –
Reference Image
✑ Update tags
Reference: alt=”Reference Image” />
✑ Update tags
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-jobs

Question 5

You have an Azure IoT Central application.
You need to connect an IoT device to the application.
Which two settings do you require in IoT Central to configure the device? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Group SAS Primary Key

B. the IoT hub name

C. Scope ID

D. Application Name

E. Device ID

 


Suggested Answer: AC

Required connection information:
✑ Group primary key: In your IoT Central application, navigate to Administration > Device Connection > SAS-IoT-Devices. Make a note of the shared access signature Primary key value.
✑ ID scope: In your IoT Central application, navigate to Administration > Device Connection. Make a note of the ID scope value.
Reference:
https://docs.microsoft.com/bs-cyrl-ba/azure/iot-central/core/tutorial-connect-device-python

Question 6

You have an Azure subscription named Sub1.
You need to ensure that when a new Azure IoT hub is created in Sub1, a warning appears indicating that communication must be allowed only from known networks. The solution must minimize development and administrative effort.
What should you include in the solution?

A. an application security group rule

B. an Azure function

C. an Azure policy

D. an Azure Monitor alert

 


Suggested Answer: D

 

Question 7

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 an Azure Stream Analytics job that receives input from an Azure IoT hub and sends the outputs to Azure Blob storage. The job has compatibility level
1.1 and six streaming units.
You have the following query for the job.
 Image
You plan to increase the streaming unit count to 12.
You need to optimize the job to take advantage of the additional streaming units and increase the throughput.
Solution: You change the query to the following.
 Image
Does this meet the goal?

A. Yes

B. No

 


Suggested Answer: A

Max number of Streaming Units with one step and with no partitions is 6.
Reference:
https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization

Question 8

You have an Azure IoT solution that contains an Azure IoT hub and Azure IoT Edge devices.
You need to configure the metrics-collector module on the devices to send metrics to the IoT hub as device-to-cloud messages.
Which environment variable should you update?

A. AllowedMetrics

B. LogAnalyticsWorkspaceId

C. UploadTarget

D. MetricsEndpointsCSVc

 


Suggested Answer: C

 

Question 9

You have an Azure IoT hub that has a hostname of contoso-hub.azure-devices.net and an MCU-based IoT device named Device1. Device1 does NOT support
Azure IoT SDKs.
You plan to connect Device1 to the IoT hub by using the Message Queuing Telemetry Transport (MQTT) protocol and to authenticate by using X.509 certificates.
You need to ensure that Device1 can authenticate to the IoT hub.
What should you do?

A. Create an Azure key vault and enable the encryption of data at rest for the IoT hub by using a customer-managed key.

B. Enable a hardware security module (HSM) on Device1.

C. From the Azure portal, create an IoT Hub Device Provisioning Service (DPS) instance and add a certificate enrollment for Device1.

D. Add the DigiCert Baltimore Root Certificate to Device1.

 


Suggested Answer: D

The connection to Azure IoT Hub with MQTT is secured using TLS.
The Azure IoT Hub library requires the provisioning of the following certificates and a private key for a successful TLS connection:
1. Baltimore CyberTrust Root certificate – Server certificate, used to verify the server’s certificate while connecting.
2. Device certificate – generated by the procedures described in Creating Azure IoT Hub certificates , used by Azure IoT Hub to authenticate the device.
3. Private key of the device.
Reference:
https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/include/net/azure_iot_hub.html

Question 10

You have an Azure IoT solution that contains an Azure IoT Edge device named Edge1.
Edge1 fails to start.
You connect to Edge1 and identify the following:
•	The IoT Edge agent is running.
•	The IoT Edge agent continually reports the following error: “Empty dconfig file.”
•	No modules have started.
You need to ensure that Edge1 starts successfully.
What should you do?

A. Update the /etc/hosts file for the host operating system and restart Edge1.

B. Reapply the iotedge config and restart Edge1.

C. Specify a DNS server for the container engine and restart Edge1.

D. Restart the Docker service.

 


Suggested Answer: C

 

Question 11

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. X.509 certificates

B. Trusted Platform Module (TPM) 2.0

C. Trusted Platform Module (TPM) 1.2

D. Symmetric key

E. Device Identity Composition Engine (DICE)

 


Suggested Answer: ABD

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

Question 12

Image
Which query should you use?

A. $event.payload.Status = “Running” AND $event.payload.Alert = “True”

B. $body.event.payload.Status = “Running” AND $body.event.payload.Alert = “True”

C. MessageType.payload.Status = “Running” AND MessageType.event.payload.Alert = “True”

D. $Status = “Running” AND $Alert = “True”

 


Suggested Answer: D

 

Question 13

DRAG DROP
-
You have sites that contain IoT devices as shown in the following table.
 Image
You have an Azure subscription.
You need to create the Azure IoT Edge devices shown in the following table.
 Image
Which type of gateway pattern should you use for each IoT Edge device? To answer, drag the appropriate gateway pattern types to the correct devices. Each pattern type 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.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 14

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 an Azure IoT solution that includes an Azure IoT hub and an Azure IoT Edge device.
You plan to deploy 10 Bluetooth sensors. The sensors do not support MQTT, AMQP, or HTTPS.
You need to ensure that all the sensors appear in the IoT hub as a single device.
Solution: You configure the sensors to connect directly to the IoT hub.
Does this meet the goal?

A. Yes

B. No

 


Suggested Answer: B

Instead use a translation gateway.
Note: 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. All information looks like it is coming from one device, the gateway.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/iot-edge-as-gateway

Question 15

During the POV phase, you connect a device to IoT Hub and start sending telemetry messages.
You need to verify the content of the messages received by IoT Hub during the POV phase.
What should you use?

A. the Monitoring settings of IoT Hub or a Postman call to the IoT Hub REST API

B. Azure Monitor or Azure Log Analytics

C. Microsoft Visual Studio Code that uses the IoT Hub Toolkit or Azure CLI that uses the IoT Hub extension

D. Splunk or Grafana

 


Suggested Answer: B

Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-use-metrics-and-diags

Question 16

You have an Azure Stream Analytics job that connects to an Azure IoT hub named Hub1445 as a streaming data source. Hub1445 is configured as shown in the exhibit.
 Image
The Stream Analytics job fails to receive any messages from the IoT hub.
What should you do to resolve the issue?

A. Disable the Route1 route.

B. Enable the Route3 route.

C. Disable the Route2 route.

D. Enable the fallback route.

 


Suggested Answer: B

Events are not getting through as Route3, with an events Endpoint, is not enabled.
Note: Azure IoT Hub is a highly scalable publish-subscribe event ingestor optimized for IoT scenarios.
The default timestamp of events coming from an IoT Hub in Stream Analytics is the timestamp that the event arrived in the IoT Hub, which is
EventEnqueuedUtcTime.
Reference:
https://www.darenmay.com/office365/2019/01/27/azure-iot-streaming-analytics-data-lake-analytics-and-json.html

Question 17

HOTSPOT -
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.
 Image
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.
Hot Area:
 Image

 


Suggested Answer:
Correct Answer Image

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

Question 18

DRAG DROP -
You have an Azure IoT hub.
You plan to attach three types of IoT devices as shown in the following table.
 Image
You need to select the appropriate communication protocol for each device.
What should you select? To answer, drag the appropriate protocols to the correct devices. Each protocol 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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

Box 1: AMQP –
Use AMQP on field and cloud gateways to take advantage of connection multiplexing across devices.
Box 2: MQTT –
MQTT is used on all devices that do not require to connect multiple devices (each with its own per-device credentials) over the same TLS connection.
Box 3: HTTPS –
Use HTTPS for devices that cannot support other protocols.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-protocols

Question 19

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 correct 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. A standard tier IoT hub does not support device twin properties in message enrichments.

C. The device sending the message has no device twin.

D. Message enrichment cannot be added to messages going to a built-in endpoint.

E. The device twin path used for the value of the enrichment does not exist.

F. The device twin property value used for message enrichment is set to “$twin.tags.ipV4”.

 


Suggested Answer: CE

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

Question 20

DRAG DROP
-
You have the following Azure Stream Analytics query.
 Image
You need to build a Stream Analytics query that will use a JavaScript user-defined aggregate (UDA) function named UDA1 to sum the TemperatureDB values.
How should you complete the function? 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.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 21

You have an Azure IoT solution that includes multiple Azure IoT hubs in different geographic locations and a single Device Provision Service instance.
You need to configure device enrollment to assign devices to the appropriate IoT hub based on the following requirements:
✑ The registration ID of the device
The geographic location of the device
 Image
The load between the IoT hubs in the same geographic location must be balanced.
What should you use to assign the devices to the IoT hubs?

A. Static configuration (via enrollment list only)

B. Lowest latency

C. Evenly weighted distribution

D. Custom (Use Azure Function)

 


Suggested Answer: A

Set the Device Provisioning Service allocation policy
The allocation policy is a Device Provisioning Service setting that determines how devices are assigned to an IoT hub. There are three supported allocation policies:
✑ Lowest latency: Devices are provisioned to an IoT hub based on the hub with the lowest latency to the device.
✑ Evenly weighted distribution (default): Linked IoT hubs are equally likely to have devices provisioned to them. This is the default setting. If you are provisioning devices to only one IoT hub, you can keep this setting.
✑ Static configuration via the enrollment list: Specification of the desired IoT hub in the enrollment list takes priority over the Device Provisioning Service-level allocation policy.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/tutorial-provision-multiple-hubs

Question 22

You are configuring a production environment for an Azure IoT solution.
You plan to deploy 1,000 IoT devices. Each device will send one device-to-cloud message every hour. Each message will be 4 KB.
You need to deploy an Azure IoT hub that will support the IoT device deployment. The solution must meet the following requirements:
✑ Perform bulk device operations such as creating multiple device identities.
✑ Minimize costs
What should you deploy?

A. one unit of the B1 tier

B. one unit of the free tier

C. one unit of the S1 tier

D. one unit of the S2 tier

 


Suggested Answer: B

1000 /3600 device-to-cloud message/second is less than 1 per second. One unit of the free tier is sufficient.
Reference Image
Reference: alt=”Reference Image” />
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-quotas-throttling

Question 23

You have an Azure subscription.
You need to deploy an Azure IoT hub by using an Azure Resource Manager (ARM) template. The solution must ensure that the IoT hub rejects connections from devices that only support cipher suites that use SHA1.
What should you include in the template?

A. “authenticationType”:“keyBased”

B. “disableDeviceSAS”:“true”

C. “disableModuleSAS”:“true”

D. “minTlsVersion”:“1.2”

 


Suggested Answer: B

 

Question 24

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. DeviceTelemetry

C. Connections

D. C2DCommands

 


Suggested Answer: B

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

Question 25

DRAG DROP -
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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

Step 1: Obtain the credential –
Obtain the group primary key from the IoT Central enrollment group.
Step 2: Generate device credentials
The group primary key used to generate device credentials
Step 3: Flash unique credentials to the devices
The OEM flashes each device with a device ID, a generated device SAS key, and the application ID scope value.
Step 4: Connect the devices to IoT Central
Step 5: Associate the devices to a template and approve the connections
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/concepts-get-connected

Question 26

You need to visualize Azure IoT Hub telemetry data by using Microsoft Power BI.
Which service should you connect to the IoT hub?

A. Azure Event Grid

B. SendGrid

C. Azure Stream Analytics

D. Azure Notification Hubs

 


Suggested Answer: C

You can use Microsoft Power BI to visualize real-time sensor data that your Azure IoT hub receives. To do so, you configure an Azure Stream Analytics job to consume the data from IoT Hub and route it to a dataset in Power BI.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-live-data-visualization-in-power-bi

Question 27

HOTSPOT
-
You create an Azure IoT hub as shown in the following exhibit.
 Image
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 28

You have an Azure IoT Central solution.
You need to verify that telemetry messages from devices arrive to IoT Central.
What should you use?

A. the Azure IoT explorer

B. the az command in Azure CLI

C. Azure Service Bus Explorer

D. the Azure IoT Tools for VS Code extension pack

 


Suggested Answer: B

 

Question 29

You enable Azure Security Center for IoT.
You need to onboard a device to Azure Security Center.
What should you do?

A. Add the azureiotsecurity module identity to the Azure IoT Hub device identity.

B. Open incoming TCP port 8883 on the device.

C. Modify the connection string of the device.

D. Install an X.509 certificate on the hardware security module (HSM) of the device.

 


Suggested Answer: A

Use the following workflow to deploy and test your Azure Security Center for IoT security agents:
1. Enable Azure Security Center for IoT service to your IoT Hub
2. If your IoT Hub has no registered devices, Register a new device.
3. Create an azureiotsecurity security module for your devices.
Azure Security Center for IoT makes use of the module twin mechanism and maintains a security module twin named azureiotsecurity for each of your devices.
Note: To manually create a new azureiotsecurity module twin for a device use the following instructions:
1. In your IoT Hub, locate and select the device you wish to create a security module twin for.
2. Click on your device, and then on Add module identity.
3. In the Module Identity Name field, enter azureiotsecurity.
4. Click Save.
Reference:
https://docs.microsoft.com/en-us/azure/asc-for-iot/quickstart-create-security-twin

Question 30

You have an Azure subscription that contains an Azure IoT hub, 500 IoT devices, and an Azure Time Series Insights Gen2 environment named Environment1.
You need to add calculated values to the Time Series Model.
What should you use?

A. instances

B. types

C. hierarchies

 


Suggested Answer: B

Time Series Model types help you define variables or formulas for doing computations. Types are associated with a specific instance.
A type can have one or more variables. For example, a Time Series Model instance might be of type Temperature Sensor, which consists of the variables avg temperature, min temperature, and max temperature.
Incorrect Answers:
A: Time Series Model instances are virtual representations of the time series themselves.
In most cases, instances are uniquely identified by deviceId or assetId, which are saved as time series IDs.
C: Time Series Model hierarchies organize instances by specifying property names and their relationships.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/concepts-model-overview

Question 31

DRAG DROP -
You have an Azure IoT solution that includes an Azure IoT hub, a Device Provisioning Service instance, and 1,000 connected IoT devices. The IoT devices are allocated to four enrollment groups. Each enrollment group is configured to use certificate attestation.
You need to decommission all the devices in a single enrollment group and the enrollment group itself.
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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

To deprovision all of the devices that have been provisioned through an enrollment group:
1. Disable the enrollment group to disallow its signing certificate.
2. Use the list of provisioned devices for that enrollment group to disable or delete each device from the identity registry of its respective IoT hub.
3. After disabling or deleting all devices from their respective IoT hubs, you can optionally delete the enrollment group. Be aware, though, that, if you delete the enrollment group and there is an enabled enrollment group for a signing certificate higher up in the certificate chain of one or more of the devices, those devices can re-enroll.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/how-to-unprovision-devices

Question 32

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 registration ID of the enrollment

B. the primary key of the enrollment

C. the device identity of the IoT hub

D. the hostname of the IoT hub

 


Suggested Answer: A

The registration ID is used to uniquely identify a device registration with the Device Provisioning Service. The device ID must be unique in the provisioning service
ID scope. Each device must have a registration ID.
Note: An individual enrollment is an entry for a single device that may register. Individual enrollments may use either X.509 leaf certificates or SAS tokens (from a physical or virtual TPM) as attestation mechanisms. The registration ID in an individual enrollment is alphanumeric, lowercase, and may contain hyphens.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/concepts-service#enrollment

Question 33

You have IoT devices that connect to an Azure IoT hub.
From IoT Hub, you create an Event subscription to be notified when devices are registered to IoT Hub. You select webhook endpoint as a handler for the Event subscription.
Which two types of Event Grid messages will be received by the webhook? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. Microsoft.Devices.DeviceCreated

B. Microsoft.Resources.ResourceWriteSuccess

C. Microsoft.EventGrid.SubscriptionValidationEvent

D. Microsoft.Devices.DeviceConnected

 


Suggested Answer: AC

 

Question 34

You have 1,000 IoT devices that connect to an Azure IoT hub.
Each device has a property tag named city that is used to store the location of the device.
You need to update the properties on all the devices located at an office in the city of Seattle as quickly as possible. Any new devices in the Seattle office that are added to the IoT hub must receive the updated properties also.
What should you do?

A. From Automatic Device Management, create an IoT device configuration.

B. From the IoT hub, generate a query for the target devices.

C. Create a scheduled job by using the IoT Hub service SDKs.

D. Deploy an Azure IoT Edge transparent gateway to the Seattle office and deploy an Azure Stream Analytics edge job.

 


Suggested Answer: A

Automatic device management in Azure IoT Hub automates many of the repetitive and complex tasks of managing large device fleets. With automatic device management, you can target a set of devices based on their properties, define a desired configuration, and then let IoT Hub update the devices when they come into scope. This update is done using an automatic device configuration or automatic module configuration, which lets you summarize completion and compliance, handle merging and conflicts, and roll out configurations in a phased approach.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-automatic-device-management

Question 35

You need to configure Stream Analytics to meet the POV requirements.
What are two ways to achieve the goal? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.

A. From IoT Hub, create a custom event hub endpoint, and then configure the endpoint as an input to Stream Analytics.

B. Create a Stream Analytics module, and then deploy the module to all IoT Edge devices in the fleet.

C. Create an input in Stream Analytics that uses the built-in events endpoint of IoT Hub as the source.

D. Route telemetry to an Azure Blob storage custom endpoint, and then configure the Blob storage as a reference input for Stream Analytics.

 


Suggested Answer: AC

 

Question 36

DRAG DROP
-
You need to configure a digital twin to accept device telemetry data from the IoT hub.
Which four 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.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 37

DRAG DROP
-
You have an Azure subscription that contains an Azure IoT Edge device named Edge1 and an Azure container registry named Registry1.
You need to configure Edge1 to connect to Registry1.
How should you complete the deployment manifest? 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.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 38

HOTSPOT
-
You have an Azure IoT hub and three Azure IoT Edge devices. The device twin code for each device is shown in the following table.
 Image
A standard automatic deployment is already applied.
You have three layered deployments. The deployment code for each deployment is shown in the following table.
 Image
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
 Image

 


Suggested Answer:
Correct Answer Image

 

Question 39

DRAG DROP -
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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

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

Question 40

You have an Azure IoT solution that includes an Azure IoT Hub named Hub1 and an Azure IoT Edge device named Edge1. Edge1 connects to Hub1.
You need to deploy a temperature module to Edge1.
What should you do?

A. From the Azure portal, navigate to Hub1 and select IoT Edge. Select Edge1, and then select Manage Child Devices. From a Bash prompt, run the following command: az iot edge set-modules –device-id Edge1 –hub-name Hub1 –content deploymentMan1.json

B. Create an IoT Edge deployment manifest that specifies the temperature module and the route to $upstream. From a Bash prompt, run the following command: az iot hub monitor-events –device-id Edge1 –hub-name Hub1

C. From the Azure portal, navigate to Hub1 and select IoT Edge. Select Edge1, select Device Twin, and then set the deployment manifest as a desired property. From a Bash prompt, run the following command: az iot hub monitor-events –device-id Edge1 –hub-name Hub1

D. Create an IoT Edge deployment manifest that specifies the temperature module and the route to $upstream. From a Bash prompt, run the following command: az iot edge set-modules –device-id Edge1 –hub-name Hub1 –content deploymentMan1.json

 


Suggested Answer: D

You deploy modules to your device by applying the deployment manifest that you configured with the module information.
Change directories into the folder where your deployment manifest is saved. If you used one of the VS Code IoT Edge templates, use the deployment.json file in the config folder of your solution directory and not the deployment.template.json file.
Use the following command to apply the configuration to an IoT Edge device: az iot edge set-modules –device-id [device id] –hub-name [hub name] –content [file path]
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-deploy-modules-cli

Question 41

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 an Azure Stream Analytics job that receives input from an Azure IoT hub and sends the outputs to Azure Blob storage. The job has compatibility level
1.1 and six streaming units.
You have the following query for the job.
 Image
You plan to increase the streaming unit count to 12.
You need to optimize the job to take advantage of the additional streaming units and increase the throughput.
Solution: You change the query to the following.
 Image
Does this meet the goal?

A. Yes

B. No

 


Suggested Answer: B

Max number of Streaming Units with one step and with no partitions is 6.
Reference:
https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-parallelization

Question 42

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 an Azure IoT solution that includes an Azure IoT hub and an Azure IoT Edge device.
You plan to deploy 10 Bluetooth sensors. The sensors do not support MQTT, AMQP, or HTTPS.
You need to ensure that all the sensors appear in the IoT hub as a single device.
Solution: You configure the IoT Edge device as an IoT Edge identity translation gateway. You configure the sensors to connect to the device.
Does this meet the goal?

A. Yes

B. No

 


Suggested Answer: A

 

Question 43

DRAG DROP -
You need to install the Azure IoT Edge runtime on a new device that runs Windows 10 IoT Enterprise.
Which four 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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

Step 1: From Azure IoT Hub, create an IoT Edge Device
Step 2: Deploy-IoTEdge –
The Deploy-IoTEdge command checks that your Windows machine is on a supported version, turns on the containers feature, and then downloads the moby runtime and the IoT Edge runtime. The command defaults to using Windows containers.
{Invoke-WebRequest -useb https://aka.ms/iotedge-win} | Invoke-Expression; `
Deploy-IoTEdge –
Step 3: Initialize-IoTEdge –
The Initialize-IoTEdge command configures the IoT Edge runtime on your machine. The command defaults to manual provisioning with Windows containers.
{Invoke-WebRequest -useb https://aka.ms/iotedge
Step 4: Enter the IoT Edge device connection string.
When prompted, provide the device connection string that you retrieved in step 1. The device connection string associates the physical device with a device ID in
IoT Hub.
Reference:https://aka.ms/iotedge-win}
| Invoke-Expression; `
Deploy-IoTEdge –
Step 3: Initialize-IoTEdge –
The Initialize-IoTEdge command configures the IoT Edge runtime on your machine. The command defaults to manual provisioning with Windows containers.
{Invoke-WebRequest -useb https://aka.ms/iotedge

Step 4: Enter the IoT Edge device connection string.
When prompted, provide the device connection string that you retrieved in step 1. The device connection string associates the physical device with a device ID in
IoT Hub.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/module-composition

Question 44

DRAG DROP -
Your company develops a custom module and exports the module as a Linux Dockerfile.
You need to deploy the module to an Azure IoT Edge device that runs Ubuntu Server 18.04.
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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

Step 1: From Microsoft Visual Studio Code,ג€¦
The Azure IoT Tools extension provides project templates for all supported IoT Edge module languages in Visual Studio Code. These templates have all the files and code that you need to deploy a working module to test IoT Edge, or give you a starting point to customize the template with your own business logic.
Step 2: Build and push the module to Azure Container Registry
Build and push your solution. Review the module code and the deployment. Then build the SampleModule container image and push it to your container registry.
Step 3: Create a deployment for the IoT Edge device.
Verify that the built container images are stored in your container registry, then deploy the modules to the device.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/tutorial-develop-for-linux?view=iotedge-2020-11

Question 45

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. Implement device certificate rolling.

C. Disenroll and reenroll Device1.

D. Configure the re-provisioning policy.

 


Suggested Answer: D

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/

Question 46

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. On the new Raspberry Pi device, modify the connection string.

B. From Hub1, modify the device shared access policy.

C. Upgrade Hub1 to the standard tier.

D. From Hub1, create a new consumer group.

E. From Hub1, create a new IoT device.

 


Suggested Answer: AE

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/

Question 47

DRAG DROP -
You have an Azure IoT Edge solution.
You plan to deploy an Azure Security Center for IoT security agent. You need to configure the security agent to meet the following requirements:
✑ Connection events must be reported as high priority.
✑ High priority events must be collected every seven minutes.
How should you configure the azureiotsecurity module twin? To answer, drag the appropriate values to the correct locations. 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.
Select and Place:
 Image

 


Suggested Answer:
Correct Answer Image

Box 1: “desired”: {
To configure connection events as high priority and collect high priority events every 7 minutes, use the following configuration.
“desired”: {
“ms_iotn:urn_azureiot_Security_SecurityAgentConfiguration”: {
“highPriorityMessageFrequency”: {
“value”: “PT7M”
},
“eventPriorityConnectionCreate”: {
“value”: “High”
}
Box 2: “highPriorityMessageFrequency “: {
Box 3: “eventPriorityConnectionCreate”: {
Reference:
https://docs.microsoft.com/en-us/azure/defender-for-iot/how-to-agent-configuration

Question 48

You need to update the IoT Edge runtime by using rolling tags.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. On the IoT Edge device, remove the edgeHub and edgeAgent container images.

B. Modify the systemModules section of the deployment manifest JSON file.

C. On the IoT Edge device, update the security daemon.

D. Add an update tag to the IoT Edge device twin.

 


Suggested Answer: AC

 

Question 49

You need to store the real-time alerts generated by Stream Analytics to meet the technical requirements.
Which type of Stream Analytics output should you configure?

A. Azure Blob storage

B. Microsoft Power BI

C. Azure Cosmos DB

D. Azure SQL Database

 


Suggested Answer: A

When you create a Time Series Insights Preview pay-as-you-go (PAYG) SKU environment, you create two Azure resources:
✑ An Azure Storage general-purpose V1 blob account for cold data storage.
✑ An Azure Time Series Insights Preview environment that can be configured for warm data storage.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-update-storage-ingress

Question 50

You have an Azure IoT hub and an Azure virtual network.
You configure a private endpoint for the IoT hub.
You need to ensure that the IoT hub can send data to downstream services.
What should you create first?

A. a consumer group

B. a managed identity

C. a message route

D. an IP filter rule

 


Suggested Answer: A

 

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