单项选择题
A. server
B. client
C. tunnel
D. transparent
单项选择题 Which command will show the MAC addresses of stations connected to switch ports?（）
单项选择题 QoS policies are applied on the switches of a LAN. Which type of command will show the effects of the policy in real time?（）
单项选择题 How many subnets can be gained by subnetting 172.17.32.0/23 into a /27 mask, and how many usable host addresses will there be per subnet?（）