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JN0-343 · Question #478
JN0-343 Question #478: Real Exam Question with Answer & Explanation
The correct answer is B. Using a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce. See the full explanation below for the reasoning.
Question
You are advertising your network's assigned prefixes to two upstream ISPs using BGP. You want incoming traffic to prefer ISP-A over ISP-B. Which action would you take to accomplish this task?
Options
- ASet a higher local preference on the prefixes you announce to ISP-A.
- BUsing a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce
- CUsing a routing policy, prepend your ASN information to the AS path attribute on prefixes you announce
- DSet the MED value lower on prefixes you announce to ISP-A.
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