What are three advantages of VLANs？（）
- AVLANs establish broadcast domains in switched networks.
- BVLANs utilize packet filtering to enhance network security.
- CVLANs provide a method of conserving IP addresses in large networks.
- DVLANs provide a low-latency internetworking alternative to routed networks.
- EVLANs allow access to network services based on department,not physical location.
- FVLANs can greatly simplify adding,moving,or changing hosts on the network.