单项选择题
Which routers must be configured with the same authentication string when configuring OSPF authentication？（）
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 WhichLSAisfloodedacrossareaboundaries？（）
多项选择题 WhichthreeLSAtypescanbefloodedwithinanOSPFstubarea？（）
单项选择题 Which of the followingLSAistheType10？（）
