Nokia Nokia Certifications 4A0-C01 Questions & Answers

• Question 591:

  Click on the exhibit.

  

  What type of OSPFv3 LSA is shown?

  A. Router LSA

  B. Network LSA

  C. Inter-Area Prefix LSA

  D. Link LSA

  Correct Answer: B

• Question 592:

  Click on the exhibit.

  

  All ports in the network are operationally up and have a speed of 1Gbps. Which of the following is TRUE?

  A. Data traffic from network 192.168.1.0/24 to 192.168.3.0/24 will be forwarded through router R2.

  B. Data traffic from network 192.168.3.0/24 to 192.168.1.0/24 will be forwarded through router R2.

  C. The system interface of routers R1 and R3 must be included into OSPF for traffic to flow between the 192.168.1.0/24 and 192.168.3.0/24 networks.

  D. The OSPF adjacency between router R1 and router R3 is operationally down.

  Correct Answer: B

• Question 593:

  Click on the exhibit button below.

  

  Given the following fast reroute protected LSPs: -LSP1.R1-R4-R5-R3 -LSP2.R1-R4-R5-R2 Which routers become bypass tunnel PLRs? Choose two answers

  A. Router R1

  B. Router R2

  C. Router R3

  D. Router R4

  E. Router R5

  Correct Answer: AE

• Question 594:

  Click on the exhibit button below.

  

  Given the configuration below, which of the following commands would enable fast reroute on the LSP? Choose two answers

  A. This configuration already is configured for FRR.

  B. fast-reroute facility

  C. fast-reroute one-to-one

  D. secondary

  E. standby

  Correct Answer: BC

• Question 595:

  Which of the following statements regarding RSVP path messages on an Alcatel-Lucent SR is true?

  A. The path message's IP header options field sets the router alert option.

  B. The IP header source address is the sender's egress interface address.

  C. The IP header destination address is the next-hop interface address.

  D. The IP header HOP object reflects the upstream router's egress interface address.

  Correct Answer: A

• Question 596:

  What is the significance of receiving a packet with the bottom MPLS label S bit set to 1?

  A. It results in forwarding based on the next packet header.

  B. It indicates that the label is the bottom of the MPLS label stack.

  C. It indicates that the label is the top of the MPLS label stack.

  D. Any LSR that receives an S bit set to 1 must discard the packet.

  Correct Answer: B

• Question 597:

  Which of the following LDP messages are used in the successful establishment of LDP sessions? Choose three answers

  A. Label request message

  B. Notification message

  C. Address message

  D. Keepalive message

  E. Initialization message

  F. Hello message

  Correct Answer: DEF

• Question 598:

  How have Traffic Engineering extensions to IS-IS been implemented?

  A. By defining new LSAs for the IS-IS protocol.

  B. By utilizing the OSPF opaque LSAs to maintain interoperability with OSPF routing domains

  C. By defining new TE extension TLVs to the IS-IS protocol.

  D. By enabling CSPF algorithm extensions that allow link state TE to be implemented.

  Correct Answer: C

• Question 599:

  Which of the following about IS-IS is FALSE?

  A. IS-IS uses the concept of Level 1 and Level 2 routers to implement hierarchy.

  B. An IS-IS router belongs to one or more areas.

  C. All Level 2 routers belong to the same area.

  D. A Level 1 router forwards traffic to other areas through the nearest Level 1/2 router.

  Correct Answer: C

• Question 600:

  Which of the following is described by the following statement? An LSR propagates a label mapping only for an FEC for which it has a label mapping for the FEC next-hop.

  A. Independent control mode.

  B. Ordered control mode.

  C. Liberal label retention.

  D. Conservative label retention.

  E. Downstream on demand

  Correct Answer: B