多项选择题
A. An identical VTP mode.
B. An identical speed/duplex.
C. An identical trunk negotiation parameter.
D. An identical trunk encapsulation parameter.
单项选择题 Which of the following technologies would an Internet Service Provider use to support overlapping customer VLAN ID’s over transparent LAN services？ （）
单项选择题 You need to connect two Company core switches via an ISL trunk. Which statement is true regarding the configuration of ISL trunks？ （）
单项选择题 A new Company switch was just configured using the "switchport trunk native vlan 7" command. What does this interface command accomplish？（）