问题:
A . It provides dynamic neighbor discovery.
B . It detects unreachable neighbors in 90 second intervals.
C . It maintains neighbor relationships.
D . It negotiates correctness parameters between neighboring interfaces.
E . Ituses timers to elect the router with the fastest links as the designated router.
F . It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.
● 参考解析
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