On which of the following networks will OSPF elect a designated router (DR)? (Choose two.)
A.
Broadcast
B.
NBMA
C.
Point-to-point
D.
Point-to-multipoint
Explanation:
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 multi-access) or Frame Relay
(non-broadcast multi-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 multiaccess segments. OSPF routers on these network types will establish an adjacency without a DR/BDR election.
Objective:
Routing Fundamentals
Sub-Objective:
Configure, verify, and troubleshoot single area and multi-area OSPFv2 for IPv4 (excluding authentication, filtering, manual summarization, redistribution, stub,
virtual-link, and LSAs)Cisco > Support > IP > IP Routing > Technology Information > Technology White Paper > OSPF Design Guide > Document ID: 7039 > DR Election