单项选择题
What is true when designing OSPF import routing policy in JUNOS software?（）
A. Import policies are not possible. B. Import policies only match on external routes. C. Import policies only match on internal routes. D. Import policies can cause inconsistent link state databases.
单项选择题 Within IS-IS, the restart helper performs which task?（）
单项选择题 How many OSPF authentication types can be configured on a subinterface using JUNOS software?（）
单项选择题 What is the function of the Type 4 LSA?（）
