单项选择题
In JUNOS software, what is the default interface metric for IS-IS?（）
A.1 B.10 C.100 D.10^8/link bandwidth
多项选择题 Firewall filter policers can perform which two actions?（）
多项选择题 Which two mechanisms control route distribution between PE routers in a 2547bis VPN?（）
多项选择题 In which two ways can you influence how downstream LSRs treat MPLS traffic?（）
