单项选择题
In JUNOS software, how is route summarization at the L1/L2 border configured?（）
A. by specifying the area-range statement B. by creating aggregate routes and applying policies C. by specifying the route-summarization statement D. by specifying the area-range restrict statement
多项选择题 Which two are default preference values for both internal and external IS-IS Level 2 routes on a Juniper Networks router?（）
多项选择题 What are two purposes of the 224.0.1.40 address in Auto-RP?（）
单项选择题 Into which protocol are LDP hello messages encapsulated?（）
