多项选择题
Which two forwarding classes have bandwidth assigned when CoS is not explicitly configured inJUNOS software?（）
A. best effort (BE) B. network control (NC) C. assured forwarding (AF) D. expedited forwarding (EF)
多项选择题 What are two reasons for using a virtual link in OSPF?（）
单项选择题 By default, to which peers will a BGP router advertise routes learned from IBGP peers?（）
单项选择题 What is a function of the OSPF Type 7 LSA?（）
