Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 111:

  LDP is enabled on both ends of a point-to-point link, but the "show router Idp status" command indicates that LDP is operationally down. The Oper Down Reason field shows the message "systemIpDown." What might cause this condition?

  A. The LSP is in the administrative down state.
  B. The router's router ID overlaps another.
  C. The router's interfaces do not have LDP running.
  D. The router's system interface requires an IP address
  D. The router's system interface requires an IP address

• Question 112:

  Which of the following routing protocols are supported on the Alcatel-Lucent 7750 SR to enable constraint- based LSPs? (Choose two)

  A. RIPv2-TE
  B. CSPF
  C. OSPF-TE
  D. ISIS-TE
  E. RSVP-TE
  C. OSPF-TE
  D. ISIS-TE

• Question 113:

  Which of the following about per-interface label space is TRUE?

  A. A single label is assigned to a FEC for all interfaces on the same router.
  B. The same label can be used to forward a packet on an LSR regardless of which egress port is used.
  C. It uses fewer label resources than a per-platform label space.
  D. A separate label is used for each interface that the FEC is advertised on.
  D. A separate label is used for each interface that the FEC is advertised on.

• Question 114:

  Which of the following is NOT an application of MPLS?

  A. Enabling VPNs
  B. Enabling traffic engineering
  C. Enabling network security
  D. Enhancing network resiliency
  C. Enabling network security

• Question 115:

  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 116:

  Click on the exhibit. After the Isp-ping command is executed, which of the following best describe the router's action?

  A. MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp- toR2".
  B. MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2".
  C. MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".
  D. MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.
  A. MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp- toR2".

• Question 117:

  Click on the exhibit.

  

  An LDP-over-RSVP tunnel is established between routers R1 and R6. There is a VPN service running between routers R1 and R6. Which of the following is TRUE?

  A. Router R3 swaps both the RSVP-TE LSP label and LDP transport label received with new labels.
  B. Router R3 swaps the VPN service label received with a new label.
  C. Router R3 uses the same RSVP-TE LSP label as the one received from router R2.
  D. Router R3 uses the same LDP transport label as the one received from router R2.
  D. Router R3 uses the same LDP transport label as the one received from router R2.

• Question 118:

  Fill in the blanks: A ________device has all interfaces inside the provider domain, and a _______ device has at least one interface outside the provider domain.

  A. PE, P
  B. P, PE
  C. PE, CE
  D. CE, PE
  E. CE, P
  B. P, PE

• Question 119:

  Which of the following are functions of the MPLS control plane in a router? (Choose two)

  A. Label allocation and management.
  B. Label swapping.
  C. Pushing a label on an unlabeled packet.
  D. Label signaling.
  E. Routing lookups.
  A. Label allocation and management.
  D. Label signaling.

• Question 120:

  Click on the exhibit button below.

  

  With fast reroute enabled, and given the following:

  

  Two protected LSPs with the path R1-R2-R3

  

  Both LSPs enable facility bypass and link protection. When router R1 is the PLR, which router becomes the MP?

  A. Router R1
  B. Router R2
  C. Router R3
  D. Router R4
  E. Router R5
  B. Router R2