单项选择题
ATM carries IP and PPP information with ATM cells. What ATM adaptation Layer is used when an ATMcell carries IP packets and PPP frames?()
A.AAU2 B.AAL3 C.AAL4 D.AAL5
多项选择题 WhichtwoofthefollowingaredesignatedfieldsforMACtunnelingprotocol(802.1ah)?()
单项选择题 ASuccessoris().
单项选择题 RoutesredistributedintoanOSPFASBRarewhichLSAtype?()