What are three characteristics of the OSPF routing protocol?（）
- A、It converges quickly.
- B、OSPF is a classful routing protocol.
- C、It uses cost to determine the best route.
- D、It uses the DUAL algorithm to determine the best route.
- E、OSPF routers send the complete routing table to all directly attached routers.
- F、OSPF routers discover neighbors before exchanging routing information.
正确答案:A,C,F
答案解析:有
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