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Exam Code : 4A0-100
Exam Name : Alcatel-Lucent Scalable IP Networks - 2024
Vendor Name : "Alcatel-Lucent"






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Alcatel-Lucent Scalable IP Networks - 2024


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Question #317


If a 5-port LAG is configured with the option of "Ëœport-threshold 2 action down', and dynamic-cost is enabled, what will happen if the total number of operational links in the LAG is 2?


  1. The LAG cost is equal to the link cost divided by 3.

  2. The LAG cost is equal to the link cost.

  3. The LAG is operationally down.

  4. The LAG cost is equal to the link cost divided by 5.




Answer: C Question #318

What type of MAC address is ff:ff:ff:ff:ff:ff?


  1. Unicast

  2. Multicast

  3. Broadcast

  4. Anycast




Answer: C Question #319

Which of the following statements about IP filters on a Nokia 7750 SR is TRUE?


  1. Multiple ingress IP filters can be used on a single interface.

  2. An IP filter can be applied to the management port.

  3. The same IP filter can be used on multiple interfaces.

  4. Only one IP filter can be defined per router.




Answer: C Question #320

Which of the following about the displayed IP filter is TRUE?


  1. TCP (protocol 6) traffic between addresses 1.2.3.0/24 and 2.3.4.0/24 is dropped.

  2. TCP (protocol 6) traffic from source address 1.2.3.0/24 to destination address 2.3.4.0/24 is forwarded.

  3. TCP (protocol 6) traffic from source address 2.3.4.0/24 to destination address 1.2.3.0/24 is dropped.

  4. TCP (protocol 6) traffic from source address 1.2.3.0/24 to destination address 2.3.4.0/24 is dropped.




Answer: A Question #321

Which of the following routing protocols provides routing between routers R1 and R2?


  1. BGP

  2. RIPv2

  3. OSPF

  4. IS-IS




Answer: A Question #322

What next-hop address should router R2 use to reach a host on 192.168.2.0/24?


A. 10.2.3.2

B. 10.1.1.1

C. 10.2.3.1

D. 10.1.1.2




Answer: B Question #323

Which of the following is a characteristic of Link State protocols?


  1. Routers send a copy of their entire routing table to their neighbors.

  2. Routers send frequent periodic updates to the entire network.

  3. Routers know the entire network topology.

  4. Routers use hop-count to calculate their routing tables.




Answer: C Question #324

When forwarding a packet, which field in the following table determines the egress interface?


  1. Preference

  2. Metric

  3. Next-hop

  4. Cost




Answer: C Question #325

Which of the following statements about router R3 is TRUE?


  1. Router R3 is the iLER for LSP B.

  2. Router R3 is the eLER for LSP A.

  3. Router R is an LSR for both LSP A and LSP B.

  4. Router R3 is LSR for LSP A and an LER for LSP B.




Answer: C Question #326

Which device is responsible for removing the MPLS label before the packet reaches the customer?


  1. The ingress LER

  2. The CE device

  3. The P router

  4. The egress LER




Answer: D Question #327

Which of the MPLS routers is responsible for pushing new labels for LSP A and LSP B?


  1. Router R1 pushes labels for both LSP A and LSP B.

  2. Router R4 pushes labels for both LSP A and LSP B.

  3. Router R1 pushes labels for LSP A, while router R4 pushes labels for LSP B.

  4. Router R4 pushes labels for LSP A, while router R1 pushes labels for LSP B.




Answer: C Question #328

From the CE perspective, how does a VPWS operate?


  1. Two sites are directly connected by a single cable.

  2. Two sites are connected through a single switched LAN.

  3. Two sites are connected through a public routed network.

  4. Two sites are connected through a private routed network.




Answer: A