In the Cloud RAN architecture, which of the following network element functions cannot be deployed in the cloud? (Multiple choice, 2 points)

In the Cloud RAN architecture, which of the following network element functions cannot be deployed in the cloud? (Multiple choice, 2 points)
A . BBU
B . DU
C . CU
D . AAU

Answer: A,B,D

Explanation:

The wireless side CU can realize cloudification, but DU/BBU/AAU cannot realize cloudification.

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