多项选择题
A. 456:91
B. 123:70
C. 123:440
D. 456:321
E. 123:550
单项选择题 You want to configure a single EBGP peering session over parallel physical circuits. Which BGPfeature enables load balancing in this scenario?（）
多项选择题 Which three steps are used to configure IPv6 in JUNOS software?（）
多项选择题 Which three RP election mechanisms are available in a PIM-SM domain?（）