多选题The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。AIt provides dynamic neighbor discovery.BIt detects unreachable neighbors in 90 second intervals.CIt maintains neighbor relationships.DIt negotiates correctness parameters between neighboring interfaces.EItuses timers to elect the router with the fastest links as the designated router.FIt broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF.
多选题
The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。
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.
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