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4A0-C01 · Question #386
4A0-C01 Question #386: Real Exam Question with Answer & Explanation
The correct answer is B. It indicates that the label is the bottom of the MPLS label stack.. See the full explanation below for the reasoning.
Question
What is the significance of receiving a packet with the bottom MPLS label S bit set to 1?
Options
- AIt results in forwarding based on the next packet header.
- BIt indicates that the label is the bottom of the MPLS label stack.
- CIt indicates that the label is the top of the MPLS label stack.
- DAny LSR that receives an S bit set to 1 must discard the packet.
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