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Exam JN0-361 topic 1 question 27 discussion

Actual exam question from Juniper's JN0-361
Question #: 27
Topic #: 1
[All JN0-361 Questions]

Which statement is true regarding default MPLS label handling?

  • A. A router that pops a label from a label stack always pushes a new label on the packet
  • B. A router that pops a label from a label stack forwards a frame based on the label that was popped.
  • C. A router that pops a label from a label stack forwards a frame based on the underlying destination IP address.
  • D. A router that pops a label from a label stack applies class of service based on the IP header to ToS bits.
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Suggested Answer: C 🗳️
by MA at Aug. 11, 2019, 8:51 p.m.

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MA
5 years, 8 months ago
C seems to be correct The pop operation removes a label from the beginning of the packet. Once the label is removed, the TTL is copied from the label into the IP packet header, and the underlying IP packet is forwarded as a native IP packet
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