4A0-103 Online Practice Questions and Answers

Click on the exhibit button below:

Consider the following:

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Router R2 is an ABR in OSPF Areas 0 and 1.

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Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1.

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Router R1 in Area 0 generates LDP labels for FECs 10.10.102/31 and 10.10.10.4/31 Router R3 in Area 1 places these FECs in its LIB, but it does not place them in its LFIB. What can you do on router R3 to make it populate these labels in its LFIB?

A.

Disable route summarization on router R3

B.

Enable LDP aggregate prefix match

C.

Create an import policy to accept these FECs

D.

Disable LDP exact match on the specified FECs

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.

Which of the following about Link TLVs found inside Type 10 Opaque LSAs is FALSE?

A. Link TLVs are used to advertise administrative group information.

B. Link TLVs are exchanged once RSVP is enabled on the interfaces.

C. Link TLVs are used to advertise router-IDs.

D. Link TLVs are used to advertise bandwidth information.

Which of the following is NOT required to configure an Alcatel-Lucent 7750 SR as a PE router running 6PE?

A. Configure BGP with the IPv6 address family.

B. Configure BGP to add IPv6 Explicit Null labels.

C. Configure a route policy to export IPv6 routes into BGP.

D. Configure the nexthop core router as a BGP peer.

Which of the following about an LSP protected with facility FRR is TRUE?

A. The LSP can use protection tunnels used by other LSPs.

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

C. The LSP is limited to link protection.

D. A detour protection tunnel is created for this LSP.

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 is NOT required when configuring an LSP with an admin group constraint on an Alcatel-Lucent 7750 SR?

A. Enable traffic engineering on all routers along the LSP path.

B. Enable CSPF on the head-end router.

C. Configure a path definition on all routers along the LSP path.

D. Enable MPLS and RSVP on all routers along the LSP path.