AZ-220 Exam QuestionsBrowse all questions from this exam
Go to Exam

AZ-220 Exam - Question 119

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.

Show Answer
Correct Answer: AE

The error 409002 LinkCreationConflict occurs when a new connection request is made for a device that already has an existing connection in the IoT Hub. To resolve this, you should modify the connection string on the new Raspberry Pi device to ensure it is unique and does not conflict with the existing device. Additionally, creating a new IoT device in Hub1 will generate a new identity and authentication keys for the new Raspberry Pi device, allowing both devices to connect simultaneously without error.

Discussion

1 comment
Sign in to comment
Marusyk
Nov 22, 2021

- From Hub1, create a new IoT device. - On the new Raspberry Pi device, modify the connection string.