单项选择题 When the BGP path selection process is being performed on a Cisco router, which BGP attribute is used first when determining the best 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? （）