Free Microsoft Azure IoT Developer Exam AZ-220 Exam Practice Test

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.

• X.509 certificates
• Trusted Platform Module (TPM) 2.0
• Trusted Platform Module (TPM) 1.2
• Symmetric key
• Device Identity Composition Engine (DICE) D18912E1457D5D1DDCBD40AB3BF70D5D
• 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.

You have an Azure IoT solution that includes an Azure IoT hub and 100 Azure IoT Edge devices.You plan to deploy the IoT Edge devices to external networks. The firewalls of the external networks only allow traffic on port 80 and port 443.You need to ensure that the devices can connect to the IoT hub. The solution must minimize costs.What should you do?

• Configure the upstream protocol of the devices to use MQTT over TCP.
• Configure the upstream protocol of the devices to use AMQP over WebSocket.
• Connect the external networks to the loT solution by using ExpressRoute.
• Integrate cellular communication hardware onto the devices and avoid the use of the external networks.

You have an Azure IoT Central solution that includes multiple IoT devices. The devices report temperature, humidity, and pressure.You need to export the sensor data captured during a 48-hour period as a CSV file.What should you use in IoT Central?

• Devices
• Jobs
• Device groups
• Analytics

You have an loT device that has the following configurations:* Hardware: Raspberry Pi* Operating system: Raspberry Pi OSYou need to deploy Azure loT Edge to the device.Which two actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

• Install the loT Edge runtime.
• Create a module twin configuration.
• Run the az iot hub module-identity update command.
• Install the container runtime.

You need to recommend the format of telemetry messages to meet the POV requirements.What should you recommend?

• XML
• Avro
• JSON

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.

• Trigger Azure functions.
• Invoke direct methods.
• Update desired properties.
• Send cloud-to-device messages.
• Disable IoT device registry entries.

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 private endpoint connection
• Azure API Management
• Azure Active Directory (Azure AD) Identity Protection
• a gateway device

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.

• On the new Raspberry Pi device, modify the connection string.
• From Hub1, modify the device shared access policy.
• Upgrade Hub1 to the standard tier.
• From Hub1, create a new consumer group.
• From Hub1, create a new IoT device.

You have an Azure subscription that contains an Azure loT hub named Hubl and an Azure loT Edge device named Devicel.You need to configure Devicel to operate in extended offline mode and to support modifying the configuration of modules deployed to Device! while the device is offline.Solution: From Microsoft Visual Studio Code, you modify the deployment manifest and you configure the address of the localhost for the container registry in the runtime settings of edgeAgent. You deploy the manifest to Device1, and then you restart the device.Does this meet the goal?

• Yes
• No

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

• Trigger Azure functions.
• Invoke direct methods.
• Update desired properties.
• Send cloud-to-device messages.
• Disable IoT device registry entries.
• Update tags.