单项选择题
Where are Level 2 LSPs flooded?（）
A.A B.B C.C D.D
多项选择题 What are three purposes of a PSNP?（）
单项选择题 When configuring OSPF on the ERX, what is the default auto-cost reference-bandwidth value?（）
单项选择题 Which CLI command is used to display BGP-learned routes that are now in the OSPF link-state database?（）
