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Nokia 4A0-103 - Alcatel-Lucent Multi Protocol Label Switching

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Total 249 questions

Click on the exhibit button below.

LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

A.

Send a PathTear message towards router R6.

B.

Send a PathTear message towards router R1.

C.

Send a ResvTear message toward router R6.

D.

Send a ResvTear message toward router R1.

Click on the exhibit.

This policy is applied as an LDP export policy. In addition to the FECs learned from its neighbors, which FECs now appear in the router's LIB?

A.

Local FECs not included in the 192.168.1.0/24 address space and the system IP FEC.

B.

Only the system IP FEC appears in the LIB.

C.

Any local FECs, except those with a 24-bit mask.

D.

Local FECs in the 192.168.1.0/24 address space.

Click on the exhibit button below. Assume the following:

- Each router's OSPF interfaces are in the areas shown.

- Bidirectional LDP-over-RSVP tunnels extend from routers R1 to R3 and back over the path R1-R4-R5-R3.

- You enable fast reroute facility bypass on the R5-R3 RSVP LSP.

- Router R5 acts as a PLR, protecting the R5-R3 link by building a bypass tunnel through router R2.

You build a layer 2 VPN on routers R1 and R3, using the LDP-over-RSVP tunnels. What MPLS configuration step must you complete on router R2 for it to protect the end-to-end service?

A.

Enable LDP on the R2-R5 interface.

B.

Configure T-LDP sessions between routers R2 and R5 and R3.

C.

Configure LDP-over-RSVP support on router R2.

D.

Enable MPLS and RSVP on the router R2 network interfaces.

E.

Enable LDP on the R2-R5 and R2-R3 interfaces.

Which mode does the following statement describe? An LSR will advertise a label mapping immediately, without waiting for a label mapping from the FEC's next-hop.

A.

Liberal label retention mode

B.

Conservative label retention mode

C.

Ordered control mode

D.

Independent control mode

How does MPLS-TE overcome the issue of IP hyper-aggregation?

A.

By enabling the creation of LSPs across alternate links to balance the network traffic.

B.

By eliminating the requirement for core IP routing.

C.

By not allowing more than one LSP to use a particular path.

D.

By defining multiple LSPs across a network and implementing an IGP load balancing algorithm across them.

Two directly connected routers set different interface Hello timeout values. Router R1 uses 15 seconds, while router R2 uses 30 seconds. Which of the following best describes the LDP adjacency?

A.

The adjacency forms with the lower timeout value.

B.

The adjacency forms with the higher timeout value.

C.

The adjacency is in init state.

D.

The adjacency times out after 30 seconds.

Click on the exhibit button below.

Consider the output shown; what table is displayed?

A.

RIB

B.

FIB

C.

LIB

D.

LFIB

Which of the following are top level TLV types defined for OSPF-TE? Choose two answers.

A.

Router address

B.

Traffic engineering metric

C.

Maximum bandwidth

D.

Link

E.

Admin Group

The destination IP address of a received unlabeled packet is successfully matched in the FIB.

Which of the following is FALSE?

A.

A POP label stack operation may be performed.

B.

The outgoing interface and next-hop address will be determined from the FIB.

C.

The packet can be forwarded as a labeled or unlabeled packet.

D.

A PUSH label stack operation may be performed.

Which of the following about per-interface label space is TRUE?

A.

A single label is assigned to a FEC for all interfaces on the same router.

B.

The same label can be used to forward a packet on an LSR regardless of which egress port is used.

C.

It uses fewer label resources than a per-platform label space.

D.

A separate label is used for each interface that the FEC is advertised on.