3.4 Configure and Verify Single Area OSPFv2 200-301 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   Two routers are connected via a dedicated point-to-point serial link. The engineer configures OSPFv2 on both routers and notices that the neighbor adjacency forms quickly and reaches FULL state. The engineer wants to verify the OSPF network type and confirm that no DR/BDR election occurred. Which command output would confirm this?

   • Ashow ip ospf neighbor shows the neighbor state as 2-WAY.
   • Bshow ip ospf interface serial 0/0/0 shows 'Network Type POINT_TO_POINT' and no DR/BDR fields.
   • Cshow ip ospf database shows a Type-2 network LSA.
   • Dshow ip protocols shows 'Routing Protocol is OSPF' with a process ID of 1.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   On an OSPFv2 broadcast network, which routers form a Full adjacency with each other?

   • AEach router forms a Full adjacency only with the DR and BDR.
   • BAll routers on the segment form Full adjacencies with each other.
   • CDROTHERs form Full adjacencies with each other and with the DR/BDR.
   • DOnly the DR and BDR form a Full adjacency with each other.
   Reveal Solution Discussion Select an answer first
4. 8expert · hard

   A network engineer is troubleshooting an OSPFv2 adjacency between two routers connected via a point-to-point serial link. The neighbor state is stuck in INIT. The engineer has verified that the area ID, network type, and authentication settings match. The engineer also confirms that the hello and dead intervals are the same on both routers. What should the engineer check next?

   • AVerify that the subnet masks on the serial interfaces match.
   • BVerify that the serial interface bandwidth is the same.
   • CVerify that the router IDs are different.
   • DVerify that the OSPF process IDs match.
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A network engineer is troubleshooting why two directly connected Cisco routers running OSPFv2 in area 0 have not formed an adjacency. The routers are connected via a point-to-point serial link. The engineer verifies that both routers have matching OSPF process IDs, area IDs, and network types. However, the neighbor state on both routers remains stuck in INIT. Which configuration mismatch is most likely causing this issue?

   • AThe serial interfaces are configured with different bandwidth values.
   • BThe hello and dead intervals are different on the two routers.
   • CThe OSPF router IDs are identical on both routers.
   • DThe OSPF process IDs are different on the two routers.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   Two routers are connected via an Ethernet link and are configured for OSPFv2. The engineer verifies that the area ID, network type, and authentication settings match. However, the adjacency is not forming. The engineer checks the interface subnet masks and finds that Router A has /24 and Router B has /25. What is the most likely impact of this mismatch?

   • AThe routers will form an adjacency but the hello interval will be adjusted automatically.
   • BThe routers will form an adjacency but only one will become the DR.
   • CThe routers will not form an adjacency because the subnet masks do not match.
   • DThe routers will form an adjacency but routes will not be installed.
   Reveal Solution Discussion Select an answer first