Exam 642-883 Question id=3505 BGP Routing in Service Provider Environments

Refer to the exhibit.
q73_92
XR4 must be configured to advertise only AS 100 local subnets to AS 10. Which configuration on XR4 achieves this goal?

A. as-path-set LOCAL
ios-regex ^$
route-policy ADV
if as-path in LOCAL then pass endif
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B. as-path-set LOCAL
ios-regex '^100$'
route-policy ADV
if as-path in LOCAL then pass endif
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C. as-path-set LOCAL
ios-regex '^$'
route-policy ADV
if as-path in LOCAL then pass endif
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D. as-path-set LOCAL
ios-regex ^100$
route-policy ADV
if as-path in LOCAL then pass endif
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