Microsoft AZ-220 Exam Questions Instant Access

Question 1

You create an Azure IoT hub by running the following command.

az iot hub create --resource-group MyResourceGroup --name MyIotHub --sku B1 -- location westus --partition-count 4

What does MylotHub support?

ADevice Provisioning Service

Bcloud-to-device messaging

CAzure IoT Edge

Ddevice twins

Answer : A

The Device Provisioning Service is included in the Basic Tiers (such as B1).

Incorrect Answers:

B, C, D: The Standard tier is needed for cloud-to-device messaging, Azure IoT Edge, and device twins.

https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-scaling

Question 2

You have an Azure loT Edge device configured as a transparent gateway.

You need to define a connection string for a leaf device that uses symmetric key authentication.

Which parameters should you specify?

ADeviceId, HostName, Gateway Hostname, and SharedAccessKey

BDeviceld, Endpoint, SharedAccessKeyName and CertificateThumbprint

CDeviceld. Endpoint. GatewayHostName and SharedAccessKeyName

DHostName, Endpoint, GatewayHostName and CertificateThumbprint

Answer : A

Question 3

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.

ADevice1

BDevice2

CDevice3

DDevice4

Answer : B, C

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.

https://docs.microsoft.com/en-us/azure/iot-edge/support

Question 4

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?

Athe Monitoring settings of loT Hub or a Postman call to the loT Hub REST API

BAzure Monitor or Azure Log Analytics

CMicrosoft Visual Studio Code that uses the loT Hub Toolkit or Azure CLI that uses the loT Hub extension

DSplunk or Grafana

Answer : B

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

Question 5

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 add IP filter rules for the devices.

Does this meet the goal?

AYes

BNo

Answer : A

Question 6

You have an Azure IoT solution.

You need to test that the solution remains functional if IoT Hub is affected by a regional outage.

What should you do?

AFrom the loT hub, set Allow public network access to Disabled.

BFrom the loT hub, start a manual failover.

CFrom the Device Provisioning Service (DPS), unlink the loT hub.

DFrom the loT hub, select Disable fallback route.

Answer : B

Manual failover is a feature of the IoT Hub service that allows customers to failover their hub's operations from a primary region to the corresponding Azure geo-paired region. Manual failover can be done in the event of a regional disaster or an extended service outage. You can also perform a planned failover to test your disaster recovery capabilities, although we recommend using a test IoT hub rather than one running in production.

https://docs.microsoft.com/en-us/azure/iot-hub/tutorial-manual-failover

Question 7

You have an Azure loT Central solution

You need to verify that telemetry messages from devices arrive to loT Central.

What should you use?

Athe Azure loT explorer

Bthe az command in Azure CLI

CAzure Service Bus Explorer

Dthe Azure loT Tools for VS Code extension pack

Answer : B

Microsoft Azure IoT Developer AZ-220 Exam Questions