单项选择题
A. Fa 0/1
B. Fa 0/3
C. Fa 0/6
D. Fa 0/8
E. Fa 0/9
F. Fa 0/12
单项选择题 Refer to Topic TestKing.com in iPAD document.What interface did Sw-AC3 associate with source MAC address 0010.5a0c.ffba?（）
单项选择题 Refer to Topic TestKing.com in iPAD document.What happens to the network when TestKingX is reconnected and a trunk exists between the two switches?（）
多项选择题 Which statements are true regarding ISDN channels?（）