When troubleshooting a network failure is performed, you try to ping the remote destination host, discovery packets are lost, so which troubleshooting method is best to take next?

 When troubleshooting a network failure is performed, you try to ping the remote destination host, discovery packets are lost, so which troubleshooting method is best to take next?
A .  Comparative configuration method
B .  Bottom-up approach
C .  Confirm business flow method
D .  Self-term down method

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Answer: B