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Question 474 - H14-231_V1.0 discussion
When developing a HarmonyOS application, a developer receives the following product request: If a user logs in to the same HarmonyOS account on device A and device B, the user can log in to the app on device A and synchronize the application account authentication information to device B as needed. After the account authentication information is synchronized, the user can open the application on device B and log in directly without entering the application account authentication information again. Which of the following descriptions of this scene is correct?
A.
The developer can do this with the help of DVID, as the application can access and manage distributed devices based on the DVID
B.
The developer can use the UUID to do this, because the app can uniquely identify the same device with the UUID during its lifetime
C.
If the developer uses the UUID to achieve the above requirements, the UUID flag will still exist after the application is uninstalled
D.
If the developer uses the DVID to achieve the above functions, the DVID is strongly associated with the HarmonyOS account and application information, so it can prevent other applications from accessing the current application data
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