单项选择题
If all OSPF routers on a broadcast network have the same OSPF priority, what parameter is used to determine the new BDR at the time of a DR failure?（）
A. area ID B. router ID C. loopback address D. IP address of interface on broadcast network
单项选择题 What is the purpose of the OSPF link-state update packet?（）
单项选择题 Why would you make a non-backbone area a stub or not-so-stubby area?（）
单项选择题 During OSPF adjacency formation, in what state is a router when it is negotiating to be in charge of the database synchronization process?（）
