单项选择题
A. local preference
B. MED
C. weight
D. or igin
E. next - hop
F. AS - path
多项选择题 Which two methods advertise internal networks to external ISPs via BGP?（）
单项选择题 Refer to the exhibit The neighbor 10.1.1.1 weight 200 BGP configuration command has been configured on router A. What will be the result of this configuration? （）
单项选择题 What technique should be used on BGP edge routers to prevent a multi - homed autonomous system from becoming a trans it system?（）