Multiple choice

Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?

  1. The two routers are connected on a multiaccess network.

  2. The hello and dead intervals are different on the two routers.

  3. They have different OSPF router IDs.

  4. They have different process IDs.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

OSPF routers must have matching hello and dead intervals to form an adjacency. Different intervals prevent routers from recognizing each other as valid neighbors. Process IDs are locally significant and can differ, different router IDs are expected and necessary, and multiaccess networks work fine with proper DR/BDR election.

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