Which router is the designated router on the segment 192.168.0.0/24?

Refer the exhibit.

Which router is the designated router on the segment 192.168.0.0/24?
A . This segment has no designated router because it is a nonbroadcast network type.
B . This segment has no designated router because it is a p2p network type.
C . Router Chicago because it has a lower router ID
D . Router NewYork because it has a higher router ID

View Answer

Answer: D

Explanation:

In OSPF (Open Shortest Path First) protocol, the router with the highest Router ID becomes the Designated Router (DR) on a broadcast and non-broadcast network. The Router ID is a unique 32-bit value assigned to each router running OSPF, which helps in identifying the router uniquely within an autonomous system. In this case, since there is no information provided about the network type being broadcast or non-broadcast, we assume it’s either of them and not point-to-point or point-to-multipoint where DR/BDR election does not occur. Hence, Router NewYork would be elected as DR if it has a higher router ID.

References: Implementing and Operating Cisco Service Provider Network Core Technologies source documents or study guide.