(Topic 1) Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?

(Topic 1) Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?
A . In multi-access networks, a DR and BDR are elected only if there are more than two routers connected to the network segment.
B . In multi-access networks, a DR and BDR are elected only if the subnet masks on the router interfaces are less than /30
C . In multi-access networks, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.
D . In multi-access networks, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

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Answer: D