多项选择题
Which two are valid configurations of an interface?（）
A.A B.B C.C D.D
单项选择题 The interface ge-0/2/3 is located in which flexible PIC concentrator slot?（）
多项选择题 Which two are correct when configuring an IP address for a Fast Ethernet interface?（）
多项选择题 Which two statements are correct regarding units in JUNOS?（）
