Cisco 648-375 Exam

Which statement about scalability in Cisco OTV is true?

  • A. Unknown unicasts are handled by the authoritative edge device.
  • B. The control plane avoids flooding by exchanging MAC reachability.
  • C. Any encapsulation overhead is avoided by using IS-IS.
  • D. IP-based functionality provides Layer 3 extension over any transport.
Answer: Option B.
Explanation: 

http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/DCI/whitepaper/DCI_1.html#w p1185792

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