Which statement about vlan operation on cisco catalyst switches is true?()
- Awhen a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table
- Bunkown unicast frames are retransmitted only to the ports that belong to the same vlan
- Cports between switches should be configured in access mode so that vlans can span across the ports
- Dbroadcast and multicast frames are retransmitted to ports that are configured on different vla