SDH equipment mainly has two platforms, 4.0 and 5.0. In the replacement of the main control board, the replacement steps are different under different platforms. Which of the following operations are unique to the 5.0 platform? (Multiple choice)

SDH equipment mainly has two platforms, 4.0 and 5.0. In the replacement of the main control board, the replacement steps are different under different platforms. Which of the following operations are unique to the 5.0 platform? (Multiple choice)
A . Turn on smart features for smart nodes
B . Software changes the network element ID
C . Software changes the network element IP
D . Data from the network management

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Answer: AB