Nokia MPLS Practice Questions - Nokia Multiprotocol Label Switching (4A0-103) Exam

What is the purpose of the S bit in an MPLS label stack entry?

It signals that the packet should be policed at this hop It indicates this is the bottom-most label in the stack It marks the label as a service label rather than a transport label It carries an explicit-null indication

Correct Answer:

It indicates this is the bottom-most label in the stack

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