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4A0-101 Exam - Question 5


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The following command sequence is executed on router R2:

✑ A: R2# configure router ospf router-id 10.10.10.99

✑ A: R2# configure router router-id 10.10.10.66

On router R1, what router ID appears for router R2 directly after these commands are executed?

Show Answer
Correct Answer: AC

When configuring a new router ID on an OSPF router, the change does not take effect immediately if the OSPF process is already running. The OSPF process must be restarted for the new router ID to take effect. Since both commands configuring the router ID were executed one after another, the initial router ID change to 10.10.10.99 would not be preempted by the subsequent change to 10.10.10.66 until the OSPF process is restarted. Therefore, the router ID appearing for router R2 directly after these commands are executed would be 10.10.10.99.

Discussion

4 comments
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AO1982Option: A
Jun 27, 2022

OSPF adjacency is non-preemptive

qtygbapjpesdayazkoOption: A
Nov 27, 2022

OSPF is non-preemptive

qtygbapjpesdayazko
Nov 27, 2022

I think is correct

CarmenM28Option: A
Mar 30, 2023

The correct answer is A.