单项选择题
What is a limitation of implementing uRPF？（）
A.MPLS LDP must be enabled. B.BGP routing protocol must be running. C.Named access-lists must be configured. D.Symmetrical routing is required. E.Domain name must be defined
单项选择题 Theabovebgpconfigurationhaswhateffectontheconfiguredrouter？（）
多项选择题 WhichtwoarecharacteristicsofanIPv6multicastaddress？（）
多项选择题 nthecaseofEthernettransport，whichtwotypesofattachmentcircuitsdoesL2TPv3support？（）
