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Exam 400-101 topic 2 question 496 discussion

Actual exam question from Cisco's 400-101
Question #: 496
Topic #: 2
[All 400-101 Questions]

Which statement about LISP encapsulation in an EIGRP OTP implementation is true?

  • A. OTP uses LISP encapsulation for dynamic multipoint tunneling.
  • B. OTP maintains the LISP control plane.
  • C. OTP uses LISP encapsulation to obtain routes from neighbors.
  • D. LISP learns the next hop.
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Suggested Answer: A 🗳️
by edg at July 20, 2020, 12:08 a.m.

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echipbk
2 years, 4 months ago
Selected Answer: C
I think the correct answer is C
upvoted 1 times
echipbk
2 years, 4 months ago
Sorry, I think the answer is A since the other three answers don't make sense
upvoted 1 times
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edg
4 years, 9 months ago
The answer is A. Reference: https://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ip-routing/whitepaper_C11-730404.html Data Plane Since the customer prefixes are not known in the VRF of provider, customer traffic can't be natively forwarded through the provider cloud, but needs to be encapsulated by CEs before being sent through the provider cloud. OTP leverages existing LISP encapsulation which: • Allows dynamic multi-point tunneling • Provides instance ID field to optionally support virtualization across WAN (see EVN WAN Extension section) OTP does NOT use LISP control plane (map server/resolver, etc.) instead it uses EIGRP to exchange routes and provide the next-hop, which LISP encapsulation uses to reach remote prefixes.
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