JN0-102 Question #253: Real Exam Question with Answer & Explanation

Question

Options

• AAccept all active BGP routes.
• BAccept all BGP routes.
• CAccept no routes.
• DAccept all active IGP routes.

Explanation

The default export policy for EBGP is to only advertise active BGP routes that were learned from other BGP peers.

Common mistakes.

• B. EBGP does not accept all BGP routes for export by default; it only exports active BGP routes that it has selected as the best path.
• C. EBGP does not accept no routes by default; it does advertise its active BGP learned routes.
• D. EBGP does not by default accept all active IGP routes for export; these would need to be explicitly redistributed into BGP using a policy.

Concept tested. EBGP Default Export Policy

Reference. https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/topic-map/policy-routing-default-policy.html

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