Cisco 100-105 Exam

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?

  • A. The OSPF area is not configured properly.
  • B. The priority on R1 should be set higher.
  • C. The cost on R1 should be set higher.
  • D. The hello and dead timers are not configured properly.
  • E. A backup designated router needs to be added to the network.
  • F. The OSPF process ID numbers must match.
Answer: Option D.
Explanation: 

In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2.

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