Which statements about VLAN are true? (Select 3 Answers)
A. The VLAN improves network security. Users on different VLANs cannot communicate with each other.
B. The VLAN improves network processing efficiency. Users on different VLANs are separated from each other. Therefore, the size of a broadcast domain is reduced.
C. Layer 2 forwarding is only based on destination MAC addresses, and is irrelevant to VLAN configuration.
D. The VLAN technology is a management method that controls the communication between terminals.
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