单项选择题
Which routers must be configured with the same authentication string when configuring OSPFauthentication?（）
A. all routers on a link B. all routers in an area C. all external OSPF peers D. all routers in an OSPF domain
单项选择题 What is true regarding the OSPF Type 2 LSA?（）
多项选择题 Which two multicast groups support Auto-RP mapping and discovery?（）
单项选择题 In JUNOS software, what is the default interface metric for IS-IS?（）
