A router is participating in an OSPFv2 domain. What will always happen if the Dead interval expires before the router receives a Hello packet from an adjacent OSPF router?
- A new Dead interval timer of four times the Hello interval will start.
- OSPF will remove that neighbor from the router’s link-state database.
- OSPF will run a new DR/BDR election.
- SPF will run and determine which neighbor router is down.
Explanation: On Cisco routers, the default Dead interval is four times the Hello interval, and this timer has expired in this case. SPF does not determine the state of neighbor routers; it determines which routes become routing table entries. A DR/DBR election does not always automatically run; it depends on the type of network and on whether or not the router that is no longer up was a DR or BDR.
Exam with this question: 2.7.5 Module Quiz - Single-Area OSPFv2 Configuration
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