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What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?

A.

It requests a new label from the peer that provided this label.

B.

It pops the label.

C.

It pushes an additional label onto the label stack.

D.

It signals a new label to the peer that sent the packet.

Click on the exhibit button below. Assume the following:

- The protected path is R1-R2-R3-R6.

- Fast reroute one-to-one protection is enabled.

If the original LSP already has two labels, and router R2 has failed, how many labels will there be in packets on the detour path?

A.

1

B.

2

C.

3

D.

4

Which of the following about RSVP-TE is TRUE?

A.

RSVP-TE is a routing protocol.

B.

RSVP-TE requests end-to-end resources for unidirectional data flow.

C.

RSVP-TE consults the local RSVP database to determine the path from source to destination.

D.

RSVP-TE generates a TED for storing traffic engineering information.

What is the purpose of the MPLS TC field (EXP bits)?

A.

Each implementation can use it as they see fit.

B.

It is used to carry the Ether type value.

C.

It is used to carry the TTL value.

D.

It is used to carry QoS classification.

E.

It is used to carry fragmentation flag information.

Which of the following conditions must a router meet for an LSP path's RSVP session to exist? Choose two answers

A.

The router must build the Path State Block (PSB).

B.

The router must build the Reservation State Block (RSB).

C.

The router must build the Session State Block (SSB)

D.

The router must send the second RESV refresh message.

E.

The router must receive the second PATH refresh message.

Click on the exhibit.

Given the output below, which of the following is FALSE?

A.

A packet arriving with label 131066 will be forwarded out interface 1 /1 /4 with label 131070.

B.

The router is an egress router for FEC 10.10.10.221/32.

C.

There are multiple LSPs to reach FEC 10.10.10.244/32.

D.

The router's system address is 10.10.10.242/32.

Router R3 signals an LSP, reserving 1Gbps bandwidth on a 10Gbps link. RSVP configuration limits reservable bandwidth to 20 percent on the egress interface. Which of the following statements is true?

A.

The egress RSVP interface has 80 percent bandwidth unreserved.

B.

LSPs can reserve an additional 9.9 Gbps bandwidth on this RSVP interface.

C.

The head end reserves 100Mbps for the LSP.

D.

The egress RSVP interface has 1Gbps bandwidth unreserved.

Click on the exhibit.

An LSP's primary path takes R1-R3-R5-R6. Its fully loose secondary path is configured for SRLG. All links are of equal cost. Which path will the secondary path take?

A.

The secondary path will take R1-R3-R2-R4-R6.

B.

The secondary path will take R1-R2-R4-R6.

C.

The secondary path will take R1-R2-R3-R5-R6.

D.

The secondary path will take R1-R3-R2-R4-R5-R6.

Which of the following about an LSP protected with one-to-one FRR is TRUE?

A.

The LSP can use facility and one-to-one FRR simultaneously.

B.

The LSP is limited to node protection.

C.

A single protection tunnel is used for all LSPs with the same path.

D.

A detour protection tunnel is created for the LSP.

Which of the following modes are used by RSVP-TE on an Alcatel-Lucent 7750 SR?

A.

Independent control mode, downstream on demand

B.

Independent control mode, downstream unsolicited

C.

Ordered control mode, downstream on demand

D.

Ordered control mode, downstream unsolicited