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The AZ-220 exam is an intermediate-level exam that requires candidates to have some experience working with IoT solutions and services in the Azure cloud environment. Candidates should have a basic understanding of cloud computing concepts and should be familiar with programming languages such as C# or Java. AZ-220 exam consists of 40-60 multiple-choice questions and has a duration of 150 minutes.
The Microsoft AZ-220 exam format consists of multiple-choice questions that assess the candidate's understanding of the Azure IoT platform and its components. AZ-220 exam duration is two hours, and the passing score is 700 out of 1000. Candidates who pass the exam earn the Microsoft Certified: Azure IoT Developer Specialty certification.
NEW QUESTION # 119
You have an Azure IoT Edge device named Edge1.
You need to configure the module container to link the module storage to the host storage.
How should you configure the deployment manifest? To answer, drag the appropriate keys to the correct targets. Each key 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-edge/how-to-use-create-options
NEW QUESTION # 120
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. Create an input in Stream Analytics that uses the built-in events endpoint of IoT Hub as the source.
- B. From IoT Hub, create a custom event hub endpoint, and then configure the endpoint as an input to Stream Analytics.
- C. Create a Stream Analytics module, and then deploy the module to all IoT Edge devices in the fleet.
- D. Route telemetry to an Azure Blob storage custom endpoint, and then configure the Blob storage as a reference input for Stream Analytics.
Answer: A,B
NEW QUESTION # 121
You have an Azure loT Central solution
You need to verify that telemetry messages from devices arrive to loT Central.
What should you use?
- A. Azure Service Bus Explorer
- B. the az command in Azure CLI
- C. the Azure loT explorer
- D. the Azure loT Tools for VS Code extension pack
Answer: B
NEW QUESTION # 122
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 # 123
You have an Azure loT solution that includes an Azure loT hub and 50 loT devices. The loT devices are registered in the loT hub.
You need to send an email when the total number of messages sent by the loT devices exceeds 4,000. The solution must minimize development effort.
What should you use?
- A. an Azure App Service app
- B. a workbook
- C. an action group
- D. an Azure function
Answer: C
NEW QUESTION # 124
You have an Azure subscription that contains the resources shown in the following table.
You create a group enrollment in DPS1 and enroll 100 loT devices. Each device is issued a leaf certificate from CAT. You need to deprovision a single loT device from the group enrollment. The solution must not affect the other devices.
Solution: You create a disabled individual enrollment by using the X.509 certificate of the device.
Does this meet the goal?
- A. Yes
- B. No
Answer: B
NEW QUESTION # 125
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. Yes
- B. No
Answer: A
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
AZ-220
Number: AZ-220
Passing Score: 800
Time Limit: 120 min
File Version: 1
AZ-220
Implement the IoT solution infrastructure
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.
Implement the IoT solution infrastructure
Question Set 2
NEW QUESTION # 126
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 # 127
You need to use message enrichment to add additional device information to messages sent from the IoT gateway devices when the reported temperature exceeds a critical threshold.
How should you configure the enrich message values? 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/bs-cyrl-ba/azure/iot-hub/iot-hub-message-enrichments-overview
NEW QUESTION # 128
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a Standard tier Azure IoT hub and a fleet of IoT devices.
The devices connect to the IoT hub by using either Message Queuing Telemetry Transport (MQTT) or Advanced Message Queuing Protocol (AMQP).
You need to send data to the IoT devices and each device must respond. Each device will require three minutes to process the data and respond.
Solution: You use cloud-to-device messages and watch the cloud-to-device feedback endpoint for successful acknowledgement.
Does this meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
Explanation
IoT Hub provides three options for device apps to expose functionality to a back-end app:
* Twin's desired properties for long-running commands intended to put the device into a certain desired state. For example, set the telemetry send interval to 30 minutes.
* Direct methods for communications that require immediate confirmation of the result. Direct methods are often used for interactive control of devices such as turning on a fan.
* Cloud-to-device messages for one-way notifications to the device app.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-c2d-guidance
NEW QUESTION # 129
You have an Azure IoT hub that uses a Device Provisioning Service instance to automate the deployment of Azure IoT Edge devices.
The IoT Edge devices have a Trusted Platform Module (TPM) 2.0 chip.
From the Azure portal, you plan to add an individual enrollment to the Device Provisioning Service that will use the TPM of the IoT Edge devices as the attestation mechanism.
Which detail should you obtain before you can create the enrollment.
- A. the endorsement key and the registration ID
- B. the scope ID and the Device Provisioning Service endpoint
- C. the primary key of the Device Provisioning Service shared access policy and the global device endpoint
- D. the X.509 device certificate and the certificate chain
Answer: A
Explanation:
The TPM simulator's Registration ID and the Endorsement key, are used when you create an individual enrollment for your device.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-auto-provision-simulated-device-linux
NEW QUESTION # 130
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 # 131
You have 10 devices that connect to an Azure loT hub. Each device has a unique public IP address. The devices are not provisioned through DPS.
You discover an anomaly in messages from two devices.
You need to stop all messages from both devices without affecting the other devices.
Solution: You delete the devices from the loT hub.
Does this meet the goal?
- A. Yes
- B. No
Answer: A
NEW QUESTION # 132
You have an Azure IoT Central application that has a custom device template.
You need to configure the device template to support the following activities:
Return the reported power consumption.
Configure the desired fan speed.
Run the device reset routine.
Read the fan serial number.
Which option should you use for each activity? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
Answer:
Explanation:
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/howto-set-up-template
NEW QUESTION # 133
You need to configure Azure IoT Edge module routing to ensure that modules route traffic as shown in the following exhibit.
How should you complete the IoT Edge module routes? 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/tutorial-machine-learning-edge-06-custom-modules
NEW QUESTION # 134
......
Microsoft AZ-220 certification exam is intended to test individuals' proficiency in developing and implementing end-to-end IoT solutions. It is designed to ensure that candidates have the necessary skills to build robust and secure IoT applications using Azure services. Passing the exam demonstrates that candidates have the expertise to design, build, and manage IoT solutions using Azure services, including IoT Hub, Stream Analytics, and other Azure services. Microsoft Azure IoT Developer certification is an excellent way for IT professionals and developers to showcase their expertise in Azure IoT development and enhance their career opportunities in the field.
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