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Exam 4A0-103 topic 2 question 46 discussion

Actual exam question from Alcatel-Lucent's 4A0-103
Question #: 46
Topic #: 2
[All 4A0-103 Questions]

Which of the following regarding MPLS Encapsulation is FALSE?

  • A. The customer's Layer 2 header is preserved at the iLER for Layer 2 services.
  • B. The customer's Layer 2 Header is preserved at the iLER for Layer 3 services.
  • C. The service provider's Layer 2 header is added at the iLER for Layer 2 services.
  • D. The service provider's Layer 2 header is added at the iLER for Layer 3 services.
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Suggested Answer: B 🗳️
by makemehappy at Feb. 28, 2024, 1:32 p.m.

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Frgaa
4 months, 1 week ago
Selected Answer: B
A is True. C, D is True (it is MPLS on Ethernet so hop-by-hop provider's switches recreate L2 header, iLER too). B is False = for L2 tunnel iLER don't touch L2 header from client, it need to be the same at eLER.
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Frgaa
4 months, 1 week ago
B is False = for L3 tunnel L2 header from client is changed by VRF on iLER and eLER
upvoted 1 times
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makemehappy
1 year, 1 month ago
Answer is A.
upvoted 1 times
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