A.When the interface sends a packet with a VLAN tag that contains the default VLAN ID, the system removes the VLAN tag of the packet, and then forwards the packet.

B.When receiving a packet without the VLAN tag, the interface adds the VLAN tag to the packet and sets the VID in the tag to the default VLAN ID.

C.None of the above.

D.When receiving a packet with a VLAN tag, the interface compares the VLAN ID in the tag with the default VLAN ID. If they are the same, the interface forwards the packets; otherwise, the interface discards the packets.

A.Hybrid interface

B.dot1q-tunnel interface

C.Trunk interface

D.Access interface

A.Broadcasts all of the routes periodically

B.Update all of the routes using multicast address periodically

C.Only update the changed routes and the new routes

D.Update routes when BGP peer requests

A.30 dBm

B.10 dBm

C.-10 dBm

D.-30 dBm

A.RTP encapsulation

B.UDP encapsulation

C.PPP encapsulation

D.TCP encapsulation