4A0-103 Online Practice Questions and Answers

When configuring an LSP for fast reroute one-to-one protection, which of the following statements is true?

A. The LSP can also use facility backup.

B. The LSP is limited to node protection.

C. You cannot request bandwidth on the protected LSP.

D. Node protection can be disabled.

Click on the exhibit button below.

Under which condition might the peer LDP ID 10.10.10.2:0 entry show state "Nonexistent"?

A. When the interface to the peer router is down.

B. When router R1 has no route to the peer address 10.10.10.2.

C. When the adjacency between the two routers fails.

D. When the targeted session is not yet configured.

Click on the exhibit.

Under which condition might the peer entry with an LDP ID of 10.10.10.2:0 show the state "Nonexistent"?

A. When the interface to the peer router is down.

B. When router R1 has no route to the peer address 10.10.10.2.

C. When LDP is not configured on the peer router's interface.

D. When the targeted session is not configured.

Which of the following is NOT an advantage of MPLS shortcuts for BGP traffic?

A. It makes use of MPLS resiliency features available within an AS.

B. It eliminates double route lookups on all routers within an AS.

C. It eliminates the need to run IGP on all routers within an AS.

D. It eliminates the need for an iBGP full mesh on all core routers.

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 regarding the MPLS SWAP label operation is TRUE?

A. The inner label will be exchanged with the MPLS outer label.

B. The inner label will be exchanged for a new label.

C. The outer label will be exchanged for a new label.

D. All labels will be exchanged for one new label.

E. All labels will be exchanged for an equal number of new labels.

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

Which of the following is TRUE when the explicit null is implemented?

A. The penultimate router will forward packets to the eLER, based on the IP header.

B. The eLER will receive packets with a top label value of 0.

C. The eLER will receive packets with a top label value of 3.

D. The penultimate router will pop the top label from the packets.

Facility fast reroute with node protection is enabled for an LSP, which of the following is FALSE?

A. Each PLR signals a bypass tunnel that avoids the next-hop downstream router.

B. When a failure occurs, the PLR pushs an additional label onto the label stack.

C. No bypass tunnel is established if the PLR cannot provide node protection.

D. The head-end router sets the local protection desired flag in the session attribute object.

Which of the following regarding label population is TRUE?

A. Selected labels from the FIB are populated to the LFIB.

B. Selected labels from the RIB are populated to the FIB.

C. Selected labels from the LIB are populated to the FIB.

D. Selected labels from the LIB are populated to the LFIB.