单项选择题
A.More collision domains will be created.
B.IP address utilization will be more efficient.
C.More bandwidth will be required than was needed previously.
D.An additional broadcast domain will be created.
单项选择题 Which switch would STP choose to become the root bridge in the selection process?（）
单项选择题 A default Frame Relay WAN is classified as what type of physical network？（）
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?（）