QUESTION: 69

What MPLS function should be performed by a router that receives a data packet containing an MPLS label value of 3?

A router will never receive a packet containing this label value.
Request a new label from the peer that provided this label.
Pop the label.
PUSH an additional label onto the label stack.
Signal a new label to the peer that sent the packet.

Answer(s): A

QUESTION: 70

Which of the following is described by the following statement? An LSR propagates a label mapping only for an FEC for which it has a label mapping for the FEC next-hop.

Independent control mode.
Ordered control mode.
Liberal label retention.
Conservative label retention.
Downstream on demand

Answer(s): B

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QUESTION: 71

Which of the following statements regarding per-platform label space are true? Choose two answers.

A separate label is used for each interface that the FEC is advertised on.
It uses fewer label resources than a per-interface label space.
It is typically used when the device has ATM or Frame Relay interfaces.
It uses more label resources than a per-interface label space.
A single label may be assigned to an FEC and used across all interfaces of the same router.
It is only valid when the LDP peers are directly connected over an interface, and the label is only going to be used for traffic sent over that interface.

Answer(s): B,E

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