Refer to the exhibit. An engineer working for a private telecommunication company with an employee id: 1234:09:567 implemented this configuration on Router1, what is the effect of it?

Question

Exhibit

Options

• ARouter 1 sends and receives multiple best paths from neighbor 192.168.1.1
• BRouter 1 sends up to three paths to neighbor 192.168.1.1 for all routes
• CRouter 1 sends only one best path to neighbor 192 168.1.1.
• DRouter 1 receives only one best path from neighbor 192.168.1.1

• A
  79% (37)
• B
  2% (1)
• C
  6% (3)
• D
  13% (6)

Explanation

Option A is correct because the configuration shown in the exhibit implements BGP Additional Paths (ADD-PATH), which enables Router1 to both advertise and receive multiple best paths for the same prefix with neighbor 192.168.1.1 - overcoming BGP's default single best-path advertisement limitation.

Why the distractors are wrong:

• B is wrong because it describes a maximum-paths configuration (which limits load-balancing paths), not ADD-PATH - and it only addresses sending, not receiving.
• C is wrong because sending only one best path is default BGP behavior without this configuration; ADD-PATH is specifically designed to go beyond that.
• D is wrong because it captures only half the picture - receiving one path is again default behavior, and ADD-PATH affects both directions simultaneously.

Memory tip: Think of ADD-PATH as "opening a two-way highway" - the keyword to remember is bidirectional (send and receive). If you see additional-paths send receive in a BGP config, the answer will always involve both directions. If a choice says "only send" or "only receive," it's describing a partial configuration or default behavior, not ADD-PATH.

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