Nokia 4A0-C01 Online Practice Questions and Exam Preparation

Nokia 4A0-C01 Online Questions & Answers

• Question 81:

  Which OSPFv3 LSA type is similar in function to the OSPFv2 Type 4 LSA?

  A. Link
  B. Intra-Area Prefix
  C. Inter-Area Prefix
  D. Inter-Area Router
  D. Inter-Area Router

• Question 82:

  Click the exhibit.

  

  The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

  A. "ping 192.168.20.1"
  B. "oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"
  C. "oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"
  D. "ping 10.10.10.6" (router R6's system IP)
  B. "oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

• Question 83:

  Click on the exhibit.

  

  Before the link failure, all routers have operational OSPF adjacencies between them and there is a BFD session between routers R1 and R3. After the link failure, which of the following affects the IGP convergence time?

  A. The convergence time depends on the value of the OSPF hello timers on routers R1 andR3.
  B. The convergence time depends on the value of the OSPF hello timers and Dead interval on routers R1 and R3.
  C. The convergence time depends on the value of the BFD interval and multiplier settings on routers R1 andR3.
  D. The convergence time depends on the time taken by the switches to detect the link failure.
  C. The convergence time depends on the value of the BFD interval and multiplier settings on routers R1 andR3.

• Question 84:

  A service provider is deploying a 6over4 tunnel to connect a customer's branch office IPv6 network to the corporate headquarters as shown in the exhibit. Which command is used to create a default route on PE2 for the branch office network?

  

  A. configure router static-route 0.0.0.0/0 indirect 10.10.10.2
  B. configure router static-route 0.0.0.0/0 indirect 2001:DB8:l:100::l
  C. configure router static-route ::/0 indirect 10.10.10.2
  D. configure router static-route ::/0 indirect 2001:DB8:l:100::l
  E. configure router static-route ::/0 indirect 2001:DB8:l:101::l
  C. configure router static-route ::/0 indirect 10.10.10.2

• Question 85:

  Which of the following statements regarding RSVP refresh reduction are true1? (Choose two)

  A. Message-IDs replace individual refresh messages.
  B. Refresh reduction applies only to reservation messages.
  C. RSVP generates a summary-refresh message for each LSP.
  D. An LSP state change causes an incremented Message-ID.
  A. Message-IDs replace individual refresh messages.
  D. An LSP state change causes an incremented Message-ID.

• Question 86:

  Which MPLS mode saves only active label mappings received from peer LSRs?

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

• Question 87:

  An OSPF backbone area contains Type 5 LSAs. If an attached area receives only Summary LSAs from the backbone area, what type of area is the attached area?

  A. Normal
  B. Stub
  C. Totally stubby
  D. Totally NSSA
  B. Stub

• Question 88:

  On an Alcatel-Lucent 7750 SR, which of the following about IES interfaces is FALSE?

  A. An IES can only have one interface.
  B. An IES interface can have an SDP or a SAP.
  C. An IES can perform fragmentation.
  D. An IES must have an IP address assigned to it.
  A. An IES can only have one interface.

• Question 89:

  What is the primary purpose of variable length subnet masks (VLSM)?

  A. To reduce the size of each routing update.
  B. To allow interoperability between routing protocols.
  C. To allow different subnet masks for different subnets.
  D. To reduce the size of the routing table.
  C. To allow different subnet masks for different subnets.

• Question 90:

  Which of the following best describes downstream unsolicited label distribution?

  A. An LSR may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.
  B. An LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC.
  C. An LSR propagates a label mapping downstream for a FEC, only if it has a label mapping for the FEC next-hop.
  D. An LSR will only distribute a label for a FEC when it has been requested to do so.
  B. An LSR may advertise label mappings to all peers for which it might be a next-hop for a given FEC.