3.4 Configure and Verify Single Area OSPFv2 200-301 Practice Questions (Page 1)

Questions 1–5

1. 1application · easy

   A router has the following configuration: interface Loopback0 with IP 10.0.0.1/32, interface GigabitEthernet0/0 with IP 192.168.1.1/24, and interface GigabitEthernet0/1 with IP 172.16.1.1/24. The router is running OSPFv2 with no router-id command configured. Which IP address will be selected as the OSPF router ID?

   • A192.168.1.1
   • B10.0.0.1
   • C172.16.1.1
   • DThe router ID is randomly generated.
   Reveal Solution Discussion Select an answer first
2. 2application · medium

   A network engineer is troubleshooting an OSPFv2 adjacency between two routers. The output of `show ip ospf neighbor` on Router A shows the neighbor in the ExStart state. What is the most likely cause of this state?

   • AThe routers are negotiating the master/slave relationship and exchanging Database Description packets.
   • BThe routers are waiting for the DR/BDR election to complete before proceeding.
   • CThe routers have a mismatch in the OSPF area ID, causing them to stop at ExStart.
   • DThe routers have mismatched Hello timers, preventing the exchange of DBD packets.
   Reveal Solution Discussion Select an answer first
4. 3foundation · easy

   What is the neighbor state between two DROTHER routers on an OSPFv2 broadcast network?

   • AFull
   • BDown
   • C2-Way
   • DExStart
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5. 4application · medium

   A network engineer is configuring OSPFv2 on a router that has the following IP addresses configured: GigabitEthernet0/0 = 192.168.1.1/24, GigabitEthernet0/1 = 10.0.0.1/24, Loopback0 = 172.16.0.1/32. The engineer wants to ensure the OSPF router ID is predictable and does not change if an interface goes down. What should the engineer do?

   • AUse the OSPF process ID as the router ID.
   • BEnsure GigabitEthernet0/0 remains up because it has the highest IP address.
   • CRely on the highest loopback IP address, which is 172.16.0.1.
   • DConfigure the router-id command with a value such as 1.1.1.1.
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   An engineer is adding a new router to an existing OSPFv2 broadcast segment. The existing DR and BDR have already been elected. The new router has a higher router ID than the current DR. After the new router is connected, which statement is true about the DR/BDR election?

   • AThe DR and BDR are re-elected, and the new router becomes the DR.
   • BThe new router becomes the BDR, and the current BDR becomes the DR.
   • CThe existing DR and BDR remain unchanged because the election is already complete.
   • DThe new router becomes the DR because it has the highest router ID.
   Reveal Solution Discussion Select an answer first