单项选择题 WhichofthefollowingATMcomponentsareneededtoconfigureanATMSVC（switchedvirtualcircuit）classicalIPinterface？（）

单项选择题 Which of the following adapters are located in the same planar？（） Ⅰ.00-00-02-08 Ⅱ.01-00-02-08 Ⅲ.00-00-04-01 Ⅳ.00-05-04-01

单项选择题 Whichofthefollowingfunctionsdoesthe"ifconfigen4down"perform？（）