Alcatel-Lucent Alcatel-Lucent Certifications 4A0-100 Questions & Answers

• Question 21:

  Which of the following Nokia 7750 SR components is NOT part of the data plane?

  A. The Media Dependent Adapter (MDA)

  B. The Input/ Output Module (IOM)

  C. The eXpandable Media Adapter (XMA)

  D. The Control Processor Module (CPM)

  Correct Answer: D

• Question 22:

  Which of the following is a function of the Link layer?

  A. It is responsible for encapsulating packets into frames for transmission on physical media

  B. It is responsible for encapsulating packets into IP datagrams and routing them

  C. It is responsible for encapsulating application data into TCP/UDP messages

  D. It is responsible for the timing of the signals on physical media.

  Correct Answer: A

• Question 23:

  Which of the following is NOT a characteristic of a Virtual Private Network (VPN)?

  A. Each customer's traffic is isolated from other customers.

  B. Service providers utilize a shared infrastructure to support multiple VPNs.

  C. Customer data is altered as it traverses a VPN.

  D. A VPN is created specifically to meet the requirements of each customer.

  Correct Answer: C

• Question 24:

  Which of the following is NOT a function of the Internet layer in the TCP/IP model?

  A. Unique network addressing scheme to identify hosts globally

  B. Orderly access to the transmission medium

  C. Routing protocols for path determination

  D. End-to-end forwarding of datagrams

  Correct Answer: B

• Question 25:

  From the CE perspective, how does a VPWS operate?

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

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

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

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

  Correct Answer: A

• Question 26:

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

  

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

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

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

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

  Correct Answer: C

• Question 27:

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

  A. The ingress LER

  B. The CE device

  C. The P router

  D. The egress LER

  Correct Answer: D

• Question 28:

  Which of the following statements about router R3 is TRUE?

  

  A. Router R3 is the iLER for LSP B.

  B. Router R3 is the eLER for LSP A.

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

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

  Correct Answer: C

• Question 29:

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

  A. Preference

  B. Metric

  C. Next-hop

  D. Cost

  Correct Answer: C

• Question 30:

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

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

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

  C. Routers know the entire network topology.

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

  Correct Answer: C