多项选择题
What are three valid LDP message types? （）(Choose three.)
A. peer discovery B. label distribution C. path initialization D. session management E. connection establishment
单项选择题 Which attribute can be associated with an LDP-signaled LSP?（）
多项选择题 Which three can be specified within an RSVP session attribute object?（） (Choose three.)
多项选择题 Which two types of nodes are included in an MPLS explicit route? （）(Choose two.)
