After finding that the OSPF configuration on a router is incorrect, you logged in to the router to check the OSPF configuration. Then you found that the association between OSPF and BFD was also incorrect, Therefore, you changed the OSPF and BFD configuration.
Which of the following troubleshooting methods is used in this process?
A . Chunking
B . Configuration comparison
C . Segmentation
D . Bottom-up
Answer: A