单项选择题
Which option is not a valid method to assign the lowest-order 64-bit field of an IPv6 unicast address？（）
A.ARP B.manual assignment C.DHCPv6 D.auto-configured based on the 48-bit MAC address E.auto-generated pseudo-random number
多项选择题 Whichtworouterssupportcableaccess？（）
单项选择题 AssumethatthePEsareseparatedbyMultipleProuters.HowmanylabelsshouldtheingressPEpushforBPEfunctionality？（）
单项选择题 WhichoptiondescribesabenefitsofIPv6VPNProviderEdge？（）
