Exam Code: 4A0-103 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Alcatel-Lucent Multiprotocol Label Switching
Certification Provider: Alcatel-Lucent
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2021 Jan 4A0-103 book
Q41. When a device receives a labeled packet, which of the following can occur?
A. The packet can only be forwarded as an unlabeled packet.
B. The packet can be forwarded as a labeled or unlabeled packet, depending on the received label value.
C. The packet can be forwarded as a labeled or unlabeled packet, depending on the destination IP address in the payload
D. The packet can only be forwarded as a labeled packet.
Answer: B
Q42. Click on the exhibit button below.
Consider the output shown; why is the label in bold font not in use?
A. The router cannot do a SWAP of this label.
B. The label does not match the egress label for the same FEC.
C. The label is for a FEC for which the next-hop is the peer router
D. The label was signaled in error.
Answer: C
Q43. Click on the exhibit
With fast reroute enabled, and given the following:
-Two protected LSPs with the path R1-R2-R3
- Both LSPs enable facility bypass and link protection.
When router R1 is the PLR, which router becomes the MP?
A. Router R1
B. Router R2
C. Router R3
D. Router R4
E. Router R5
Answer: B
Q44. Which of the following indicates the path over which an LSP's tail end router will return an RSVP RESV message?
A. The IGP FIB.
B. The Reservation State Block (RSB)
C. The Path State Block (PSB)
D. The opaque database.
Answer: C
Q45. Click on the exhibit button.
The policy on router R2 is applied as an LDP export policy. What FECs now appear in router R2's LIB?
A. Local FECs, not including those in the 192.168.1.0/24 address space.
B. Only system ID FECs may appear 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
Answer: A
Refresh 4A0-103 exam answers:
Q46. 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
Answer: B
Q47. Which of the following describes what happens when facility backup fast reroute is enabled for a LSP? Choose three answers.
A. Each PLR will signal a bypass tunnel that avoids the next-hop node or link.
B. When a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
C. The ingress router will include a RRO object in the path message to indicate the routers that should be PLRs and MPs along the protected path.
D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish bypass tunnels.
E. When the bypass tunnel is in use, the MP will include the RRO object in its PathErr message, with the local protection in use flag set to notify the ingress router that it is using the bypass tunnel.
Answer: A,B,D
Q48. Which of the following reservation styles can be used to prevent both the primary and secondary paths from booking resources on a common link?
A. Fixed filter
B. Shared explicit
C. Standby explicit LSP
D. Preemptive filter
E. Link capacity filter
Answer: B
Q49. True or False? MPLS may use an existing data link layer header field to identify a label, instead of using a specific MPLS header
A. TRUE
B. FALSE
Answer: A
Q50. Which approach to LSP path diversity provides the most control, but the least flexibility?
A. Administrative Groups
B. Shared Risk Link Groups
C. Strict hop LSP paths
D. Fast reroute
Answer: C