Routers R1 and R2, with router IDs 1.1.1.1 and 2.2.2.2, connect over an Ethernet WAN link. The configuration uses all defaults, except giving R1 an interface priority of 11 and changing both routers to use OSPF network type point-to-point. If the WAN link initializes for both routers at the same time, which of the following answers are true? (Choose two answers.)
- Router R1 will become the DR.
- Router R1 will dynamically discover the existence of router R2.
- Router R2 will be neither the DR nor the BDR.
- Router R2’s show ip ospf neighbor command will list R1 with a state of “FULL/DR.”
Explanation: First, the OSPF point-to-point network type causes the two routers to dynamically discover neighbors, making one answer correct.
Next, IOS assigns a default OSPF interface priority of 1, so R1’s configured priority of 11 would be better in a DR/BDR election. However, the point-to-point network type causes the router to not use a DR/BDR on the interface. As a result, the answer about R1 becoming the DR is incorrect (because no DR exists at all), and the answer listing a state of “FULL/DR” is incorrect for the same reason. However, the answer that claims that R2 will be neither DR nor BDR is true because no DR or BDR is elected.
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