Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 211:

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

• Question 212:

  Which mode does the following statement describe? An LSR will advertise a label mapping immediately, without waiting for a label mapping from the FEC's next-hop.

  A. Liberal label retention mode
  B. Conservative label retention mode
  C. Ordered control mode
  D. Independent control mode
  D. Independent control mode

• Question 213:

  Click on the exhibit button below.

  

  Given the configuration below, what is the system ID of the destination node?

  A. 10.32.1.2
  B. 10.1.478
  C. 1048.1.1
  D. Cannot tell from this configuration
  E. 10.1.2.2
  B. 10.1.478

• Question 214:

  What action does a router perform when it looks up the label of an incoming packet in its LFIB and sees that the LFIB maps to an egress label of 3?

  A. It requests a new label from the peer that provided this label.
  B. It pops the label.
  C. It pushes an additional label onto the label stack.
  D. It signals a new label to the peer that sent the packet.
  B. It pops the label.

• Question 215:

  Which of the following defines an FEC in traditional IP?

  A. A group of packets that will be forwarded by the router in the same manner, over the same path.
  B. A group of packets that arrive at the router on the same interface,
  C. A group of packets that leave the router on the same interface.
  D. A group of packets that arrive at the router on the same interface, from the same source.
  A. A group of packets that will be forwarded by the router in the same manner, over the same path.

• Question 216:

  Which of the following about an ERO in an RSVP PATH message is FALSE?

  A. ERO is used by downstream routers to determine the next-hop for the LSP.
  B. ERO contains label information used to signal an LSP path.
  C. ERO is not always present in the PATH message.
  D. Each downstream router updates information inside the ERO.
  B. ERO contains label information used to signal an LSP path.

• Question 217:

  Which of the following devices receives labeled packets from the MPLS domain, removes the MPLS header, and forwards unlabeled packets outside the MPLS domain?

  A. P router
  B. LSR
  C. eLER
  D. iLER
  C. eLER

• Question 218:

  Which one of the following statements regarding RSVP LSP configuration is true?

  A. LSPs must always terminate on a system ID.
  B. MPLS and RSVP must be enabled on all routers.
  C. Interfaces must be individually created in RSVP.
  D. Path definitions must include at least one hop entry.
  B. MPLS and RSVP must be enabled on all routers.

• Question 219:

  Click on the exhibit.

  

  Under which condition might the peer entry with an LDP ID of 10.10.10.2:0 show the state "Nonexistent"?

  A. When the interface to the peer router is down.
  B. When router R1 has no route to the peer address 10.10.10.2.
  C. When LDP is not configured on the peer router's interface.
  D. When the targeted session is not configured.
  B. When router R1 has no route to the peer address 10.10.10.2.

• Question 220:

  Click on the exhibit.

  

  An LDP tunnel is established on router R1 towards router R6. The link between routers R2 and R4 goes down. What will happen to the MPLS data traffic to router R6 IMMEDIATELY after the link goes down?

  A. MPLS data traffic will be discarded until the IGP finds a new next-hop to router R3.
  B. MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.
  C. MPLS data traffic will not be discarded because router R1 received labels from both next- hops, routers R2 and R3.
  D. MPLS data traffic will not be discarded because of fast reroute capability on router R2.
  B. MPLS data traffic will be discarded unless the LDP tunnel has a standby secondary path.