What are two services that the OSPF Hello protocol provides?
A. It discovers neighbor routers
B. It gets routes from neighbors during startup
C. It helps elect a designated router
D. It allows administrator to test for connectivity between
two devices
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Answer: A and C
The Hello protocol is used for establishing and maintaining
router neighbor relationships. Hello packets are used for
neighbor discovery and recovery. They also indicate that a
client is still operating and network ready through
keep-alives. On multiaccess networks (networks supporting
more than two routers), the Hello protocol elects a
designated router and a backup designated router.
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