Which two statements about CDP are true? (Choose two)

Which two statements about CDP are true? (Choose two)
A . It is disabled when switches have mismatched native VLANs
B . Devices with Cisco Discovery Protocol configured send advertisement message to a broadcast address on a periodic basis
C . Devices with Cisco Discovery Protocol configured send advertisement message to a multicast address on a periodic basis
D . VTP relies on Cisco Discovery Protocol to carry VTP domain information
E . It can be disabled only at the interface level

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Answer: AC