300-510 · Question #175
300-510 Question #175: Real Exam Question with Answer & Explanation
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Question
Refer to the exhibit. Company A established BGP sessions with several ISPs. A network engineer at the company must filter out all traffic except for routes that transit AS 152. The engineer configured the filtering policy "permit _152$_(_[0-9])" on R1, but after applying the configuration, the engineer notices that other routes are still visible. Which action resolves the issue?
Options
- AAdd a second filtering policy in the format ip access-list 1 permit ^152_([0-9]+).
- BAdd a second filtering policy in the format ip prefix-list 1 permit ^152^.
- CChange the filtering policy to ip explicit-path 1 permit $152^.
- DChange the filtering policy to ip as-path access-list 1 permit _152_.
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