Networking - EIGRP and OSPF - Discussion

Discussion :: EIGRP and OSPF - EIGRP and OSPF (Q.No.1)

1. 

With which network type will OSPF establish router adjacencies but not perform the DR/BDR election process?

[A]. Point-to-point
[B]. Backbone area 0
[C]. Broadcast multi-access
[D]. Non-broadcast multi-access

Answer: Option A

Explanation:

No DR is assigned on any type of point-to-point link. No DR/BDR is assigned on the NBMA point-to-multipoint due to the hub/spoke topology. DR and BDR are elected on broadcast and non-broadcast multi-access networks. Frame Relay is a non-broadcast multi-access (NBMA) network by default.

Mani said: (Feb 12, 2019)  
What is meant by dr and bdr?

Can anyone explain the details?

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