单项选择题
A. a router with subinterfaces configured on the physical interface that is connected to the switch
B. a router with an IP address on the physical interface connected to the switch
C. a switch with an access link that is configured between the switches
D. a switch with a trunk link that is configured between the switches
单项选择题 A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch?（）
单项选择题 Which switch would STP choose to become the root bridge in the selection process?（）
单项选择题 Which VTP mode is capable of creating only local VLANs and does not synchronize with other switches in the VTP domain?（）