Microsoft AZ-220 - Microsoft Azure IoT Developer Exam
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Total 251 questions
Question #11 (Topic: Question Set 1)
You have an existing Azure IoT hub.
You need to connect physical IoT devices to the IoT hub.
You are connecting the devices through a firewall that allows only port 443 and port 80.
Which three communication protocols can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
You need to connect physical IoT devices to the IoT hub.
You are connecting the devices through a firewall that allows only port 443 and port 80.
Which three communication protocols can you use? Each correct answer presents a complete solution.
NOTE: Each correct selection is worth one point.
A. MQTT over WebSocket
B. AMQP
C. AMQP over WebSocket
D. MQTT
E. HTTPS
Answer: ACE
Question #12 (Topic: Question Set 1)
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?
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?
A. Configure the upstream protocol of the devices to use MQTT over TCP.
B. Configure the upstream protocol of the devices to use MQTT over WebSocket.
C. Connect the external networks to the IoT solution by using ExpressRoute.
D. Integrate cellular communication hardware onto the devices and avoid the use of the external networks.
Answer: B
Question #13 (Topic: Question Set 1)
You have 100 devices that connect to an Azure IoT hub named Hub1. The devices connect by using a symmetric key.
You deploy an IoT hub named Hub2.
You need to migrate 10 devices from Hub1 to Hub2. The solution must ensure that the devices retain the existing symmetric key.
What should you do?
You deploy an IoT hub named Hub2.
You need to migrate 10 devices from Hub1 to Hub2. The solution must ensure that the devices retain the existing symmetric key.
What should you do?
A. Add a desired property to the device twin of Hub2. Update the endpoint of the 10 devices to use Hub2.
B. Add a desired property to the device twin of Hub1. Recreate the device identity on Hub2.
C. Recreate the device identity on Hub2. Update the endpoint of the 10 devices to use Hub2.
D. Disable the 10 devices on Hub1. Update the endpoint of the 10 devices to use Hub2.
Answer: B
Question #14 (Topic: Question Set 1)
DRAG DROP
You have an Azure subscription that contains an Azure IoT hub and 100 IoT devices.
The devices connect to the IoT hub by using the Advanced Message Queuing Protocol (AMQP) protocol and authenticate to the IoT hub by using symmetric keys.
You need to configure the SASL PLAIN username for the AMQP connection.
How should you configure the username? To answer, drag the appropriate options to the correct targets. Each option 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.
Select and Place:
You have an Azure subscription that contains an Azure IoT hub and 100 IoT devices.
The devices connect to the IoT hub by using the Advanced Message Queuing Protocol (AMQP) protocol and authenticate to the IoT hub by using symmetric keys.
You need to configure the SASL PLAIN username for the AMQP connection.
How should you configure the username? To answer, drag the appropriate options to the correct targets. Each option 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.
Select and Place:
Answer: 
Question #15 (Topic: Question Set 1)
You are configuring a production environment for an Azure IoT solution.
You plan to deploy 1,000 IoT devices. Each device will send one device-to-cloud message every hour. Each message will be 4 KB.
You need to deploy an Azure IoT hub that will support the IoT device deployment. The solution must meet the following requirements:
✑ Perform bulk device operations such as creating multiple device identities.
✑ Minimize costs
What should you deploy?
You plan to deploy 1,000 IoT devices. Each device will send one device-to-cloud message every hour. Each message will be 4 KB.
You need to deploy an Azure IoT hub that will support the IoT device deployment. The solution must meet the following requirements:
✑ Perform bulk device operations such as creating multiple device identities.
✑ Minimize costs
What should you deploy?
A. one unit of the B1 tier
B. one unit of the free tier
C. one unit of the S1 tier
D. one unit of the S2 tier
Answer: B
