Huawei
H31-161 · Question #176
BGP often uses AS PATH to control inter-area routes. Which of the following regular expressions helps ensure that routes within AS 100 and neighboring ASs are received from only one EBGP neighbor?
The correct answer is C. ^100_([0-9]*)$. See the full explanation below for the reasoning.
Question
BGP often uses AS PATH to control inter-area routes. Which of the following regular expressions helps ensure that routes within AS 100 and neighboring ASs are received from only one EBGP neighbor?
Options
- A100_([0-9]+)$
- B^100_([0-9]+)$
- C^100_([0-9]*)$
- D^100_([0-9]*)
How the community answered
(17 responses)- A6% (1)
- B6% (1)
- C76% (13)
- D12% (2)
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