禁止滥用权利原则要求（)。A．国家机关不得滥用职权B．国家工作人员不得滥用职权C．父母不得滥用监护

A.no VLANs

B.all VLANs

C.only VLANs 1 - 64

D.only the VLANs that are specified when creating the trunk

A.By default, all defined VLANs are allowed on the trunk.

B.Each single VLAN, or VLAN range, must be specified with the switchport mode command.

C.Each single VLAN, or VLAN range, must be specified with the vtp domain command.

D.Each single VLAN, or VLAN range, must be specified with the vlan database command.

re allowed over this trunk link？

A. No VLANs

B. Only the VLANs that are specified when creating the trunk

C. Only VLANs 1-64

D. All VLANs

E. All VLAN's except VLAN 1

F. None of the above

A.a switch with a trunk link that is configured between the switches

B.a router with an IP address on the physical interface that is connected to the switch

C.a switch with an access link that is configured between the switches

D.a router with subinterfaces configured on the physical interface that is connected to the switch

A．ios base::in

B．ios_base::binary

C．ios base::in|ios base::out

D．ios base::out

A．ios base::in

B．ios_base::binary

C．ios base::in|ios base::out

D．ios base::out

A. Switch(vlan)# mode trunk

B. Switch(config)# switchport access mode trunk

C. Switch(config-if)# switchport mode trunk

D. Switch(config-if)# switchport trunk encapsulation dot1q

E. Switch(config)# switchport access mode 1

F. Switch(vlan)# trunk encapsulation dot1q

A.A switch in the VTP client mode cannot update its local VLAN database.

B.A trunk link must be configured between the switches to forward VTP updates.

C.A switch in the VTP server mode can update a switch in the VTP transparent mode.

D.A switch in the VTP transparent mode will forward updates that it receives to other switches.

E.A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number.

F.A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.

packets travelling through trunk links. When an Ethernet frame traverses a trunk link, a special VLAN tag is added to the frame and sent across the trunk link .How does ERS use the VLAN tag？（）

A. provide service internetworking

B. support transparency for Layer 2 frames

C. indicate destination as a connection identifier

D. map to the DLCI in service internetworking