[Jan-2024] Latest AZ-220 Exam Dumps for Pass Guaranteed [Q69-Q89]

[Jan-2024] Latest AZ-220 Exam Dumps for Pass Guaranteed

Reliable Microsoft Certified: Azure IoT Developer Specialty AZ-220 Dumps PDF Jan 03, 2024 Recently Updated Questions

Microsoft AZ-220 exam is targeted for developers, who are looking to build their career in IoT development. Microsoft Azure IoT Developer certification is ideal for individuals who have experience in developing cloud and web applications, and are looking to expand their knowledge in IoT development. Microsoft Azure IoT Developer certification is also beneficial for individuals who are involved in IoT projects, and want to demonstrate their expertise in IoT development.

Microsoft AZ-220 certification exam is designed for professionals who want to validate their skills and knowledge in developing and implementing Azure IoT solutions. AZ-220 exam is targeted at developers who have experience working with Azure IoT services and technologies, and who are looking to demonstrate their expertise in this area. Microsoft Azure IoT Developer certification exam is designed to test the candidate's knowledge of Azure IoT services, Azure IoT Hub, Azure Event Grid, Azure Stream Analytics, Azure Time Series Insights, Azure IoT Central, and Azure IoT Edge.

Exam Syllabus

This Microsoft exam measures specific technical skills. Therefore, you must develop competence in these technical areas to be able to achieve success in the certification test. The domains covered in the exam are highlighted below:

Data Processing & Management: 15-20%
This part focuses on the examinees’ skills in configuring routing within Azure Internet of Things Hub. It also covers their ability to configure stream processing, and configure the IoT solution for TSI. The applicants should know how to create stream processing for IoT data and ASA for data. They should also be able to implement solutions for handling time-stamped and telemetry data.
Implementation of IoT Solution Infrastructures: 15-20%
This topic shows that you are able to create and configure IoT Hub. Besides that, you must also demonstrate competence in registering a device, configuring a device twin, and IoT Hub tier & scaling. It also helps the candidates develop their skills in building communication and device messaging as well as configuring substantial IoT devices.
Monitoring, Optimization, and Troubleshooting of Internet of Things Solutions: 15-20%
The questions from this area will measure the skills of the test takers in the configuration of health monitoring, troubleshooting of specific device communications, and execution of end-to-end solution diagnostics and testing.
Implementation of Edges: 15-20%
The potential candidates for the Microsoft AZ-220 exam should possess the capability to deploy IoT Edge devices, set up them, and develop modules. They will be required to demonstrate their skills in creating device identity with IoT Hub, deploying production certificates, securing Internet of Things Edge solutions, and provisioning IoT Edge devices with the use of DPS. The questions from this section will also measure their skills in configuring IoT Edge devices, including selecting and deploying the relevant gateway pattern, implementing module-to-module communications, and configuring offline support.

NEW QUESTION # 69
You plan to deploy an Azure IoT hub.
The IoT hub must support the following:
* Three Azure IoT Edge devices
* 2,500 IoT devices
Each IoT device will spend a 6 KB message every five seconds.
You need to size the IoT hub to support the devices. The solution must minimize costs.
What should you choose?

A. one unit of the S1 tier
B. one unit of the B2 tier
C. one unit of the S3 tier
D. one unit of the B1 tier

Answer: C

Explanation:
2500* 6 KB * 12 = 180,000 KB/minute = 180 MB/Minute.
B3, S3 can handle up to 814 MB/minute per unit.
Incorrect Answers:
A, C: B1, S1 can only handle up to 1111 KB/minute per unit
B: B2, S2 can only handle up to 16 MB/minute per unit.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-scaling

NEW QUESTION # 70
You have an Azure subscription that contains an Azure IoT hub and two IoT devices named Device1 and Device2.
You plan to deploy an Azure IoT Edge gateway device named Gateway1.
You need to ensure that all device-to-cloud messages and twin change notifications from Device1 and Device2 to the IoT hub are routed by using Gateway1.
What tasks should you perform to configure the devices? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

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

Box 1: Device1 and Device2
Connection strings for downstream devices need the following components:
* The gateway device that the device connects through. Provide the hostname value from the IoT Edge gateway device's config file: GatewayHostName={gateway hostname} Box 2: Gateway1 To deploy the IoT Edge hub module and configure it with routes to handle incoming messages from downstream devices, follow these steps:
* In the Azure portal, navigate to your IoT hub.
* Go to IoT Edge and select your IoT Edge device that you want to use as a gateway.
* Select Set Modules.
* On the Modules page, you can add any modules you want to deploy to the gateway device.
* Select Next: Routes.
* On the Routes page, make sure that there is a route to handle messages coming from downstream devices. For example:A route that sends all messages, whether from a module or from a downstream device, to IoT Hub:
Name: allMessagesToHub Value: FROM /messages/* INTO $upstream
Box 3: FROM /messages/* INTO $upstream
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-authenticate-downstream-device

NEW QUESTION # 71
HOTSPOT
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.
Hot Area:

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 Provision and manage devices Testlet 1 Case Study This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.
To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other question on this case study.
At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next sections of the exam. After you begin a new section, you cannot return to this section.
To start the case study
To display the first question on this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.
Existing Environment. Current State of Development
Contoso produces a set of Bluetooth sensors that read the temperature and humidity. The sensors connect to IoT gateway devices that relay the data.
All the IoT gateway devices connect to an Azure IoT hub named iothub1.
Existing Environment. Device Twin
You plan to implement device twins by using the following JSON sample.

Existing Environment. Azure Stream Analytics
Each room will have between three to five sensors that will generate readings that are sent to a single IoT gateway device. The IoT gateway device will forward all the readings to iothub1 at intervals of between 10 and
60 seconds.
You plan to use a gateway pattern so that each IoT gateway device will have its own IoT Hub device identity.
You draft the following query, which is missing the GROUP BYclause.
SELECT
AVG(temperature),
System.TimeStamp() AS AsaTime
FROM
Iothub
You plan to use a 30-second period to calculate the average temperature reading of the sensors.
You plan to minimize latency between the condition reported by the sensors and the corresponding alert issued by the Stream Analytics job.
Existing Environment. Device Messages
The IoT gateway devices will send messages that contain the following JSON data whenever the temperature exceeds a specified threshold.

The levelproperty will be used to route the messages to an Azure Service Bus queue endpoint named criticalep.
Existing Environment. Issues
You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.
Requirements. Planning Changes
Contoso plans to make the following changes:
* Use Stream Analytics to process and view data.
* Use Azure Time Series Insights to visualize data.
* Implement a system to sync device statuses and required settings.
* Add extra information to messages by using message enrichment.
* Create a notification system to send an alert if a condition exceeds a specified threshold.
* Implement a system to identify what causes the intermittent connection issues and lost messages.
Requirements. Technical Requirements
Contoso must meet the following requirements:
* Use the built-in functions of IoT Hub whenever possible.
* Minimize hardware and software costs whenever possible.
* Minimize administrative effort to provision devices at scale.
* Implement a system to trace message flow to and from iothub1.
* Minimize the amount of custom coding required to implement the planned changes.
* Prevent read operations from being negatively affected when you implement additional services.

NEW QUESTION # 72
You have an Azure IoT solution that includes an Azure IoT hub.
You receive a root certification authority (CA) certificate from the security department at your company.
You need to configure the IoT hub to use the root CA certificate.
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.

Answer:

Explanation:

1 - Upload the root CA certificate to the loT hub.
2 - Generate a varification code.
3 - Generate a varication certificate.
4 - Upload the veratication certificate.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-hub/iot-hub-security-x509-get-started

NEW QUESTION # 73
You need to install the Azure IoT Edge runtime on a new device that runs Windows 10 IoT Enterprise.
In which order should you perform the actions? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Explanation:

Explanation:
Step 1: From Azure IoT hub, create an IoT Edge device
In the Azure Cloud Shell, enter the following command to create a device named myEdgeDevice in your hub.
az iot hub device-identity create --device-id myEdgeDevice --edge-enabled --hub-name {hub_name} View the connection string for your device, which links your physical device with its identity in IoT Hub. Copy the value of the connectionString key from the JSON output and save it. This value is the device connection string. You'll use this connection string to configure the IoT Edge runtime in the step 3.
Step 2: From an elevated PowerShell prompt, run the Deploy-IoTEdge cmdlet.
Install the Azure IoT Edge runtime on your IoT Edge device.
Run PowerShell as an administrator.
Run the Deploy-IoTEdge command, which performs the following tasks:
- Checks that your Windows machine is on a supported version.
- Turns on the containers feature.
- Downloads the moby engine and the IoT Edge runtime.
Step 3: From an elevated PowerShell prompt, run the Initialize-IoTEdge cmdlet Step 4: Enter the IoT Edge device connection string.
Configure the IoT Edge device with a device connection string.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/quickstart

NEW QUESTION # 74
You need to recommend a solution to keep device properties synced to IoT Hub. The solution must minimize data loss caused by the connectivity issues.
What should you include in the recommendation?

A. loT Hub device twins
B. the loT Hub direct method
C. a cloud-to-device message
D. Azure Event Grid

Answer: A

Explanation:
Explanation
Scenario: You discover connectivity issues between the IoT gateway devices and iothub1, which cause IoT devices to lose connectivity and messages.
To synchronize state information between a device and an IoT hub, you use device twins. A device twin is a JSON document, associated with a specific device, and stored by IoT Hub in the cloud where you can query them. A device twin contains desired properties, reported properties, and tags.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-device-twins

NEW QUESTION # 75
You have an Azure IoT solution that includes several Azure IoT hubs.
A new alerting feature was recently added to the IoT devices. The feature uses a new device twin reported property named alertCondition.
You need to send alerts to an Azure Service Bus queue named MessageAlerts. The alerts must include alertCondition and the name of the IoT hub.
Which two actions should you perform? Each Answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Create an IoT Hub routing rule that has a data source of Device Twin Change Events and select the endpoint for MessageAlerts.
B. Create an IoT Hub routing rule that has a data source of Device Telemetry Messages and select the endpoint for MessageAlerts.
C. Add the following message enrichments:
Name = iotHubName
Value = $twin.tag.location
Endpoint = MessageAlert
D. Configure File upload for each IoT hub. Configure the device to send a file to an Azure Storage container that contains the device name and status message.
E. Add the following message enrichments:
Name = iotHubName Value = $iothubname
Endpoint = MessageAlert

Answer: C,E

Explanation:
B: Message enrichments is the ability of the IoT Hub to stamp messages with additional information before the messages are sent to the designated endpoint. One reason to use message enrichments is to include data that can be used to simplify downstream processing. For example, enriching device telemetry messages with a device twin tag can reduce load on customers to make device twin API calls for this information.
D: Applying enrichments
The messages can come from any data source supported by IoT Hub message routing, including the following examples:
-->device twin change notifications -- changes in the device twin device telemetry, such as temperature or pressure device life-cycle events, such as when the device is created or deleted Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-message-enrichments-overview

NEW QUESTION # 76
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

NEW QUESTION # 77
You have an Azure subscription that contains an Azure IoT hub and two IoT devices named Device1 and Device2.
You plan to deploy an Azure IoT Edge gateway device named Gateway1.
You need to ensure that all device-to-cloud messages and twin change notifications from Device1 and Device2 to the IoT hub are routed by using Gateway1.
What tasks should you perform to configure the devices? 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/how-to-authenticate-downstream-device

NEW QUESTION # 78
You have an Azure loT hub named Hub1 and an Azure Service Bus queue named S8Q1.
You create an authorization rule for the Service Bus queue.
You need to configure message routing from Hub1 to SBQ1.
Which three commands should you run in sequence? To answer, move the appropriate commands from the list of commands to the answer area and arrange them in the correct order.

Answer:

Explanation:

1 - az servicebus queue authorization-rule keys list
2 - as iot hub routing-endpoint create
3 - as iot hub route create

NEW QUESTION # 79
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:

Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-automatic-device-management

NEW QUESTION # 80
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. Connections
D. DeviceTelemetry

Answer: D

Explanation:
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 # 81
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 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 connecting to the IoT hub.
Solution: You disconnect the Device Provisioning Service from the IoT hub.
Does this meet the goal?

A. No
B. Yes

Answer: A

Explanation:
Explanation
Instead, 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.
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/how-to-unprovision-devices

NEW QUESTION # 82
You have an Azure IoT hub.
You plan to attach three types of IoT devices as shown in the following table.

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.

Answer:

Explanation:

Explanation:
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

NEW QUESTION # 83
You have 100 devices that connect to an Azure IoT hub.
You need to be notified about failed local logins to a subnet of the devices.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Explanation:

Explanation

Step 1: Enable Azure Security Center for IoT
Security alerts, such as failed local IoT hub logins, are stored in AzureSecurityOfThings.SecurityAlert table in the Log Analytics workspace configured for the Azure Security Center for IoT solution.
Step 2: Select a device security group
Update a device security group..
Step 3: Create a custom alert rule
by creating a custom alert rule
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/asc-for-iot/how-to-security-data-access
https://docs.microsoft.com/en-us/rest/api/securitycenter/devicesecuritygroups/createorupdate

NEW QUESTION # 84
You have an Azure subscription that contains a resource group named RG1.
You need to deploy the Device Provisioning Service. The solution must ensure that the Device Provisioning Service can accept new device enrollments.
You create a Device Provisioning Service instance.
Which two actions should you perform next? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. From the Linked IoT hubs blade of the Device Provisioning Service, link an Azure IoT hub.
B. From the Azure portal, create a new Azure IoT hub.
C. From the Manage allocation policy blade of the Device Provisioning Service, configure an allocation policy.
D. From the Certificates blade of the Device Provisioning Service, upload an X.509 certificate to the Device Provisioning Service.

Answer: A,C

Explanation:
A: The Device Provisioning Service can only provision devices to IoT hubs that have been linked to it.
C: Allocation policy. The service-level setting that determines how Device Provisioning Service assigns devices to an IoT hub. There are three supported allocation policies:
* Lowest latency: devices are provisioned to an IoT hub with the lowest latency to the device.
* Evenly weighted distribution
* Static configuration via the enrollment list
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-dps/concepts-service

NEW QUESTION # 85
You have an Azure IoT hub that receives messages from an IoT device. The messages are serialized as Protobuf.
You need the IoT hub to route the messages.
What should you do first?

A. From the Azure portal, configure the loT hub to add message enrichments.
B. Configure the loT device to add application properties to the messages.
C. Configure the loT device to add ASCII-encoded properties to the body of the messages.
D. From the Azure portal, add desired properties to the device twin.

Answer: D

Explanation:
Explanation
Device twins store device-related information that:
Device and back ends can use to synchronize device conditions and configuration.
The solution back end can use to query and target long-running operations.
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 # 86
You have 100 devices that connect to an Azure IoT hub.
You need to be notified about failed local logins to a subnet of the devices.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Explanation:

Explanation:
Step 1: Enable Azure Security Center for IoT
Security alerts, such as failed local IoT hub logins, are stored in AzureSecurityOfThings.SecurityAlert table in the Log Analytics workspace configured for the Azure Security Center for IoT solution.
Step 2: Select a device security group
Update a device security group..
Step 3: Create a custom alert rule
..by creating a custom alert rule
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/asc-for-iot/how-to-security-data-access
https://docs.microsoft.com/en-us/rest/api/securitycenter/devicesecuritygroups/createorupdate

NEW QUESTION # 87
You have an instance of Azure Time Series Insights and an Azure IoT hub that receives streaming telemetry from IoT devices.
You need to configure Time Series Insights to receive telemetry from the devices.
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 - Create a dedicated consumer group..
2 - Add a new Time Series Insights event source.
3 - Configure the Time Series event source to connect to an existing IOT hub Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source-iothub

NEW QUESTION # 88
You need to install the Azure IoT Edge runtime on a new device that runs Windows 10 IoT Enterprise.
In which order should you perform the actions? 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 - From Azure IoT hub, create an IoT Edge device
2 - From an elevated PowerShell prompt, run the Deploy-IoTEdge cmdlet.
3 - From an elevated PowerShell prompt, run the Initialize-IoTEdge cmdlet
4 - Enter the IoT Edge device connection string.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/quickstart