Exam Questions and Answers for AZ-220 Study Guide Questions and Answers!
Microsoft Azure IoT Developer Certification Sample Questions and Practice Exam
The Microsoft AZ-220 exam has a duration of 180 minutes, during which candidates must answer 40-60 questions. The exam is available in multiple languages, including English, Japanese, Simplified Chinese, and Korean. To pass the exam, candidates must score at least 700 out of 1000 points. Microsoft recommends that candidates have at least one year of experience developing IoT solutions before taking the exam.
NEW QUESTION # 41
You deploy an Azure IoT hub.
You need to demonstrate that the IoT hub can receive messages from a 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:
Explanation
Step 1: Register a device in IoT Hub
Before you can use your IoT devices with Azure IoT Edge, you must register them with your IoT hub. Once a device is registered, you can retrieve a connection string to set up your device for IoT Edge workloads.
Step 2: Configure the device connection string on a device client.
When you're ready to set up your device, you need the connection string that links your physical device with its identity in the IoT hub.
Step 3: Trigger a new send event from a device client.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/how-to-register-device
NEW QUESTION # 42
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:
Reference:
https://docs.microsoft.com/bs-latn-ba/azure/iot-hub/iot-hub-security-x509-get-started
NEW QUESTION # 43
You plan to deploy Azure Time Series Insights.
What should you create on iothub1 before you deploy Time Series Insights?
- A. an IP filter rule
- B. a new shared access policy
- C. a new consumer group
- D. a new message route
Answer: C
Explanation:
Create a dedicated consumer group in the IoT hub for the Time Series Insights environment to consume from. Each Time Series Insights event source must have its own dedicated consumer group that isn't shared with any other consumer. If multiple readers consume events from the same consumer group, all readers are likely to exhibit failures.
Reference:
https://docs.microsoft.com/en-us/azure/time-series-insights/time-series-insights-how-to-add-an-event-source- iothub
Topic 3, Fabrikam
General Overview
Fabrikam, Inc. is an international food company that has a main office in London and 250 sites worldwide.
FabRIkam uses a prototype hydroponics loT management system that tracks temperatures and PH levels and adjusts conditions automatically.
Location
The prototype environment is deployed to the main office.
IoT Hub
The management system uses a free tier Azure loT hub.
Devices
The prototype contains the devices shown in the following table.
Each device will use the following:
* A common set of Azure loT Edge modules
* A unique module for each type of sensor or controller
Each device has a device twin. Each device twin contains a tag that identifies the device type. For example, the device twin of Child4 contains a tag of ph. Each device sends 1.440 4-KB messages to the loT hub per day.
Pilot deployment
A pilot of the hydroponics loT management system will be deployed initially to 50 of the company's worldwide sites.
Device Requirements
Fabrikam identifies the following device requirements:
* Cloud-to-device commands will be sent to each primary control device.
* All module communication from the child devices must be routed to the loT hub.
* The parameters of each device type must be configured in the loT Edge container configuration file.
* Device modules must be deployed to all the devices automatically, and then updated automatically. The solution must support targeted deployments by using device twin tags.
Networking Requirements
Fabrikam identifies the following networking requirements:
* Child devices will NOT have internet access.
* The primary control device in each site will have internet access.
* Child devices will communicate with their local primary control device by using the AMQP protocol.
Monitoring Requirements
Fabrikam identifies the following monitoring requirements:
* The number of device-to-cloud telemetry messages sent to the loT hub by the primary control devices must be tracked.
* An email notification must be sent if a message is NOT received from Child4 every 10 minutes.
Technical Requirements
Fabrikam identifies the following technical requirements:
* The solution must support cloud-to-device commands.
* Administrative effort must be minimized whenever possible.
* Hardware and software costs must be minimized whenever possible.
* Access to the loT hub must be restricted to devices that connect from the company's sites.
NEW QUESTION # 44
You are planning a proof of concept (POC) that will use an Azure IoT hub.
You have two self-signed client authentication certificates named Cert1 and Cert2. Cert1 has a basic constraint that contains Subject Type=C You need to identify which certificates to use.
What should you identify? 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-dps/concepts-x509-attestation
NEW QUESTION # 45
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 # 46
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 # 47
You have the following device twin for the IoT device.
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
Box1: Yes
Box 2: Yes
Fanspeed 73 is a reported property.
Box 3: No
The deviceID property is read only.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins
NEW QUESTION # 48
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:
Explanation
Box 1: Measurement
Telemetry/measurement is a stream of values sent from the device, typically from a sensor. For example, a sensor might report the ambient temperature.
Box 2: Property
The template can provide a writeable fan speed property
Properties represent point-in-time values. For example, a device can use a property to report the target temperature it's trying to reach. You can set writeable properties from IoT Central.
Box 3: Settings
Box 4: Command
You can call device commands from IoT Central. Commands optionally pass parameters to the device and receive a response from the device. For example, you can call a command to reboot a device in 10 seconds.
Reference:
https://docs.microsoft.com/en-us/azure/iot-central/core/howto-set-up-template
NEW QUESTION # 49
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.Resources.ResourceWriteSuccess
- B. Microsoft.Devices.DeviceConnected
- C. Microsoft.EventGrid.SubscriptionValidationEvent
- D. Microsoft.Devices.DeviceCreated
Answer: C,D
Explanation:
Microsoft.Devices.DeviceCreated: Published when a device is registered to an IoT hub.
The first thing you want to do is handle Microsoft.EventGrid.SubscriptionValidationEvent events. Every time someone subscribes to an event, Event Grid sends a validation event to the endpoint with a validationCode in the data payload.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-event-grid
https://docs.microsoft.com/en-us/azure/event-grid/receive-events
NEW QUESTION # 50
You have an Azure IoT hub that is being taken from prototype to production.
You plan to connect IoT devices to the IoT hub. The devices have hardware security modules (HSMs). You need to use the most secure authentication method between the devices and the IoT hub. Company policy prohibits the use of internally generated certificates.
Which authentication method should you use?
- A. An X.509 certificate signed by a root certification authority (CA).
- B. a symmetric key
- C. an X.509 self-signed certificate
- D. a certificate thumbprint
Answer: A
Explanation:
Purchase X.509 certificates from a root certificate authority (CA). This method is recommended for production environments.
The hardware security module, or HSM, is used for secure, hardware-based storage of device secrets, and is the most secure form of secret storage. Both X.509 certificates and SAS tokens can be stored in the HSM Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/concepts-security
NEW QUESTION # 51
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:
Explanation
Graphical user interface, text, application, table Description automatically generated
Box 1: Protocol translation
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.
Box 2: Advanced MessageQueuing Protocol (AMQP)
Connection multiplexing - All devices connecting to IoT Hub through an IoT Edge gateway can use the same underlying connection. This multiplexing capability requires that the IoT Edge gateway uses AMQP as its upstream protocol.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/iot-edge-as-gateway
NEW QUESTION # 52
You have the devices shown in the following table.
You are implementing a proof of concept (POC) for an Azure IoT solution.
You need to deploy an Azure IoT Edge device as part of the POC.
On which two devices can you deploy IOT Edge? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
- A. Device2
- B. Device3
- C. Device1
- D. Device4
Answer: A,B
Explanation:
Azure IoT Edge runs great on devices as small as a Raspberry Pi3 to server grade hardware.
Tier 1.
The systems listed in the following table are supported by Microsoft, either generally available or in public preview, and are tested with each new release.
Reference:
https://docs.microsoft.com/en-us/azure/iot-edge/support
NEW QUESTION # 53
You need to configure a gateway for the child devices. The solution must meet the networking requirements. Which gateway pattern should you use?
- A. transparent
- B. identity translation
- C. protocol translation
Answer: A
NEW QUESTION # 54
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 hostname of the IoT hub
- D. the device identity of the IoT hub
Answer: D
Explanation:
An enrollment is the record of devices or groups of devices that may register through auto-provisioning. The enrollment record contains information about the device or group of devices, including:
the attestation mechanism used by the device
the optional initial desired configuration desired IoT hub
the desired device ID
Note: Azure IoT auto-provisioning can be broken into three phases:
1. Service configuration - a one-time configuration of the Azure IoT Hub and IoT Hub Device Provisioning Service instances, establishing them and creating linkage between them.
2. Device enrollment - the process of making the Device Provisioning Service instance aware of the devices that will attempt to register in the future. Enrollment is accomplished by configuring device identity information in the provisioning service, as either an "individual enrollment" for a single device, or a "group enrollment" for multiple devices.
3. Device registration and configuration
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/concepts-service#enrollment
NEW QUESTION # 55
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.p2 = 'abc'
- B. $event.p4.p5 = 0.0
- C. $event['p1'] != NULL
- D. $event.p1.String = 'abc'
Answer: C,D
Explanation:
Example: $event['p1'] != NULL
['p1'] is the only token used. Interpreted as $event['p1'].Double != NULL Reference:
https://docs.microsoft.com/en-us/rest/api/time-series-insights/reference-time-series-expression-syntax
NEW QUESTION # 56
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 tour 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.
Answer:
Explanation:
1 - Disable the enrollment group.
2 - Delete each device from the identity registry.
3 - Delete the enrollment group.
Reference:
https://docs.microsoft.com/en-us/azure/iot-dps/how-to-unprovision-devices
NEW QUESTION # 57
You have an Azure IoT solution that contains an Azure IoT hub.
You need to ensure that the IoT hub configuration is compliant with the Health Insurance Portability and Accountability Act (HIPAA) audit logging requirements.
What should you use?
- A. an Azure Sentinel workspace
- B. Azure Advisor recommendations
- C. an Azure Policy definition
- D. Azure Monitor alerts
Answer: C
Explanation:
Explanation
Regulatory Compliance in Azure Policy provides Microsoft created and managed initiative definitions, known as built-ins, for the compliance domains and security controls related to different compliance standards, including HIPAA auditing logging.
Reference:
https://docs.microsoft.com/en-us/azure/iot-hub/security-controls-policy
NEW QUESTION # 58
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 # 59
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this question, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have devices that connect to an Azure IoT hub. Each device has a fixed GPS location that includes latitude and longitude.
You discover that a device entry in the identity registry of the IoT hub is missing the GPS location.
You need to configure the GPS location for the device entry. The solution must prevent the changes from being propagated to the physical device.
Solution: You add tags to the device twin. Does the solution meet the goal?
- A. Yes
- B. No
Answer: B
Explanation:
Instead add the desired properties to the device twin.
Note: Device Twins are used to synchronize state between an IoT solution's cloud service and its devices. Each device's twin exposes a set of desired properties and reported properties. The cloud service populates the desired properties with values it wishes to send to the device. When a device connects it requests and/or subscribes for its desired properties and acts on them.
Reference:
https://azure.microsoft.com/sv-se/blog/deep-dive-into-azure-iot-hub-notifications-and-device-twin/
NEW QUESTION # 60
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 # 61
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 update the twin desired property and check the corresponding reported property.
Does this meet the goal?
- A. Yes
- B. No
Answer: A
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 # 62
You have an Azure loT Hub deployment.
You plan to deploy 1,000 loT devices that will have 1 MB of RAM. The devices will be deployed behind firewalls that block port 443. You need to configure the communication protocol for the devices. The solution must ensure that each device uses unique credentials. Which protocol should you use?
- A. MQTT
- B. AMQP
- C. MQTT over WebSockets
- D. AMQP over WebSockets
Answer: D
NEW QUESTION # 63
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 Web Hook as the Endpoint Type.
- C. Create an Azure logic app that has a Request trigger.
- D. From the IoT hub, configure an event subscription that has API management as the Endpoint Type.
Answer: B,C
Explanation:
For non-telemetry events like DeviceConnected, DeviceDisconnected, DeviceCreated and DeviceDeleted, the Event Grid filtering can be used when creating the subscription.
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 # 64
......
The exam tests the candidate's ability to implement Azure IoT services, including IoT Hub, IoT Edge, and Azure Stream Analytics. The exam also covers topics such as device provisioning, security, data storage, and data processing. The certification is an excellent way for individuals to showcase their expertise in IoT development and gain recognition from employers and peers.
The Microsoft AZ-220 certification exam covers a range of topics, including configuring and managing IoT devices, implementing IoT solutions using Azure IoT services, analyzing and visualizing IoT data, and securing IoT solutions. The exam also tests your ability to build and deploy Azure Stream Analytics solutions, develop custom Azure IoT Edge modules, and implement Azure IoT Hub message routing and message enrichment. By passing this exam, you will demonstrate your expertise in developing and managing end-to-end IoT solutions on the Microsoft Azure platform, which can help you advance your career in IoT development and engineering.
AZ-220 certification dumps - Microsoft Certified: Azure IoT Developer Specialty AZ-220 guides - 100% valid: https://www.free4torrent.com/AZ-220-braindumps-torrent.html
100% Pass Your AZ-220 at First Attempt with Free4Torrent: https://drive.google.com/open?id=1PdOMFyo-C0TUQdtaYm2PEhe69G74tWTC