On which of the following networks will OSPF elect a designated router (DR)? #ospf #examprep #cisco

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*Answer: A) Broadcast and C) NBMA*
OSPF will perform an election for a designated router (DR) and backup designated router (BDR) on every multi-access network segment. Multi-access segments are defined as segments where more than two hosts can reach each other directly, such as a shared Ethernet segment (broadcast multiple access) or Frame Relay (non-broadcast multiple access, or NBMA).
DR and BDR elections do not occur on point-to-point or point-to-multipoint segments. Point-to-point and point-to-multipoint segments are not considered multi-access segments. OSPF routers on these network types will establish an adjacency without a DR/BDR election.

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