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Question 41

Click the Exhibit button.

You have an OSPF environment. You have recently added a router called R4 that is directly connected to R1 and R2. You discover that R4 is only peering with R2.

Referring to the exhibit, how would you correct the peering?

Adjust the Hello Interval on R1 and R2 to match the Hello Interval on R4.

Change the MTU size on R1 and R2 to be 22 bytes higher than R4's MTU size.

Adjust the Dead Interval on R4 to match the Dead Interval on R1 and R2.

Adjust the Priority on R1 to be lower than the Priority on R4.

Correct Answer: A

In OSPF, the Hello Interval must be the same on all routers on a shared network. From the exhibit, it is evident that R1 and R2 have a Hello Interval of 10 seconds while R4 has a Hello Interval of 5 seconds. This mismatch in Hello Intervals would prevent R1 and R4 from forming an OSPF adjacency. Adjusting the Hello Interval on R1 and R2 to match the Hello Interval on R4 should correct the peering issue.

Discussion

3574e4e

Both hello and dead timers have to be adjusted on R4?

hbstyleboy

The hello interval and the dead interval optimize convergence times by efficiently tracking neighbor status. By lowering the values of the hello interval and the dead interval, you can increase the convergence of OSPF routes if a path fails. These intervals must be the same on all routing devices on a shared network.

Guru29

None of them are correct answer.