多项选择题
In which two ways can you influence how downstream LSRs treat MPLS traffic?（）
A. Use an EXP rewrite table. B. Use a DSCP rewrite table. C. Statically assign a CoS value to an LDP-signaled LSP. D. Statically assign a CoS value to an RSVP-signaled LSP.
多项选择题 Which three are well-known mandatory BGP attributes? （）
单项选择题 How long is an IPv6 address?（）
单项选择题 What is the default function of a secondary path in MPLS?（）
