Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 61:

  When are virtual links used in OSPF?

  A. When two areas need to communicate and there is no area 0.
  B. When an area needs to traverse another area to reach area 0.
  C. When two areas are connected to area 0, but there is no direct path between them.
  D. When an area needs to connect directly to another area without using area 0.
  B. When an area needs to traverse another area to reach area 0.

• Question 62:

  Which of the following describes constraint-based routing?

  A. A mechanism that implements opaque LSAs.
  B. A mechanism that computes routes based on specified requirements.
  C. A mechanism that ensures the IGP best route is used.
  D. A mechanism that enables LDP signaling to use a route other than the IGP best route.
  B. A mechanism that computes routes based on specified requirements.

• Question 63:

  Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. One of the routers is the DIS. How many adjacencies will be formed between them?

  A. None
  B. 1
  C. 2
  D. 3
  E. 4
  C. 2

• Question 64:

  Which of the following statements is FALSE regarding 6VPE?

  A. 6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 information over an IPv4 MPLS infrastructure.
  B. Customers connected to 6VPE could run native IPv6 or IPv4.
  C. On the PE router, the next hop for a VPN IPv6 address is an IPv6 address, regardless of the nature of the network between the PEs.
  D. 6VPE requires an IPv6-aware MPLS core.
  E. Both C and D are false.
  F. All of the above statements are true.
  D. 6VPE requires an IPv6-aware MPLS core.

• Question 65:

  Refer to the exhibit.

  

  Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?

  A. With a Router LSA originated by R1
  B. With a Router LSA originated by R5
  C. With a Router LSA originated by R4
  D. With an Inter-Area Prefix LSA originated by R1
  E. With an Inter-Area Prefix LSA originated by R5
  F. With an Inter-Area Prefix LSA originated by R4
  D. With an Inter-Area Prefix LSA originated by R1

• Question 66:

  A network technician needs to set up a local mirror to replicate traffic for examination with a protocol analyzer. The analyzer is on port 1/1/4 of his service router. Which of the following configuration steps is required?

  A. A mirror source listing port 1/1/4.
  B. A mirror destination listing port 1/1/4.
  C. A remote source command indicating the IP address of the service router he is configuring a local mirror on.
  D. Verification that his IP/MPLS infrastructure is in place
  E. None of the above.
  B. A mirror destination listing port 1/1/4.

• Question 67:

  Which of the following is defined by the following statement? All label mappings received from all peer LSRs are saved.

  A. Conservative label retention
  B. Liberal label retention.
  C. Downstream on demand.
  D. Downstream unsolicited.
  B. Liberal label retention.

• Question 68:

  What is the default vc-type for an SDP on the Alcatel-Lucent 7750 SR?

  A. vc-type null
  B. vc-type ether
  C. vc-type vlan
  D. vc-type none
  B. vc-type ether

• Question 69:

  Click on the exhibit.

  

  An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled and after the link is restored, which of the following is FALSE?

  A. Router R3 starts the LDP-Sync timer after recovering the LDP session on R3-R6.
  B. Router R1 continues to use R1-R2-R4-R6 until the LDP-Sync feature is disabled.
  C. Router R3 advertises the maximum metric for the link to router R6.
  D. Router R1 receives a label from router R3 after the LDP session is established on R3- R6.
  B. Router R1 continues to use R1-R2-R4-R6 until the LDP-Sync feature is disabled.

• Question 70:

  Which of the following about IES is FALSE?

  A. An IES has a configurable VC MTU.
  B. An IES interface has an IP address assigned to it.
  C. IES supports QoS.
  D. An IES requires a spoke SDP.
  D. An IES requires a spoke SDP.