Which of the following statements about the BGP Advertise External feature is FALSE?

Question

Options

• AIt modifies the BGP advertisement logic.
• BIt improves convergence times and allows for better load sharing.
• CIt allows a router to advertise multiple external paths for a single prefix.
• DIt supports both IPv4 and IPv6.

• A
  7% (4)
• B
  13% (7)
• C
  76% (42)
• D
  4% (2)

Explanation

C is false because BGP Advertise External allows a router to advertise only one additional external path - specifically, the best eBGP-learned path - even when the best overall path is an iBGP path. Advertising multiple external paths for a single prefix is the role of BGP ADD-PATH (Additional Paths), a distinct feature.

Why the distractors are true (and thus not the answer):

• A is true - the feature explicitly overrides the standard BGP "advertise only your best path" rule, changing advertisement logic.
• B is true - making the best external path available to downstream peers reduces reconvergence time on failure and enables load sharing across paths.
• D is true - the feature applies to both the IPv4 and IPv6 address families.

Memory tip: Think "External = One Extra." BGP Advertise External gives you one extra (the best external path). If you need many extras, that's ADD-PATH - which adds multiple paths. If an exam answer says "multiple," it's describing ADD-PATH, not Advertise External.

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