Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 151:

  Which of the following are top level TLV types defined for OSPF-TE? Choose two answers.

  A. Router address
  B. Traffic engineering metric
  C. Maximum bandwidth
  D. Link
  E. Admin Group
  A. Router address
  D. Link

• Question 152:

  Which of the following fields does NOT appear in the MPLS label header?

  A. Label
  B. Frame check sequence
  C. Traffic Class (previously called Experimental)
  D. Time To live
  E. Bottom of stack bit
  B. Frame check sequence

• Question 153:

  Click on the exhibit.

  

  An LSP path is established on router R1 toward router R6. If the link between routers R4 and R6 goes down, which of the following is the quickest way for service recovery?

  A. Router R1 updates its FIB after a new SPF calculation.
  B. Router R1 switches to a secondary path.
  C. Router R4 switches to a FRR path.
  D. Router R4 switches to a standby secondary path.
  C. Router R4 switches to a FRR path.

• Question 154:

  Which of the following statements regarding admin groups is FALSE?

  A. Admin groups can be configured using the command "configure>router>mpls>admin-group".
  B. CSPF uses the information defined by admin groups when paths are computed for constraint- based LSPs.
  C. By default, interfaces for which MPLS has been enabled are in the default admin group.
  D. A LSP can make use of admin groups for constraint-based path calculations by including or excluding the admin group
  C. By default, interfaces for which MPLS has been enabled are in the default admin group.

• Question 155:

  Which of the following statements is true when the implicit null is implemented?

  A. The penultimate router will POP the top label from the packets.
  B. The eLER will receive packets with a top label value of 3.
  C. The eLER will receive packets with a top label value of 0.
  D. The penultimate router will always receive unlabeled packets.
  E. The penultimate router performs a double lookup on the packet.
  A. The penultimate router will POP the top label from the packets.

• Question 156:

  Which of the following regarding per-platform label space is TRUE?

  A. A separate label is used for each interface on which the FEC is advertised.
  B. A single label is assigned to a FEC for all interfaces on the same router,
  C. It is typically used when the device has ATM or Frame Relay interfaces.
  D. It uses more label resources than a per-interface label space.
  B. A single label is assigned to a FEC for all interfaces on the same router,

• Question 157:

  Click on the exhibit.

  

  An LSP traverses the path R1-R2-R3-R6 and facility fast reroute is enabled. If the protected LSP carries one transport label and one service label, how many labels will be on the bypass tunnel if router R2 fails?

  A. 1
  B. 2
  C. 3
  D. 4
  C. 3

• Question 158:

  Which of the following about configuring an LSP path definition on an Alcatel-Lucent 7750 SR is FALSE?

  A. A path definition can have both loose and strict hops.
  B. A path definition can be configured with loose hops only.
  C. A path definition is configured on the head-end router only,
  D. A path definition is not required if CSPF is enabled on an LSP.
  D. A path definition is not required if CSPF is enabled on an LSP.

• Question 159:

  If an Alcatel-Lucent 7750 LSR receives a labeled packet with a outer label TTL of 250 and an inner label TTL of 251, which of the following statements is true?

  A. The packet will be label switched; the outer label TTL will be 249 and the inner label TTL will be 250.
  B. The packet will be label switched; the outer label TTL will be 249 and the inner label TTL will be 251.
  C. The packet will be label switched; both the outer label TTL and the inner label TTL will be 250.
  D. The packet will be label switched; both the outer label TTL and the inner label TTL will be 249, because they must be the same.
  B. The packet will be label switched; the outer label TTL will be 249 and the inner label TTL will be 251.

• Question 160:

  Which of the following about CSPF is TRUE?

  A. The tail-end router performs the CSPF calculation for an LSP.
  B. CSPF calculations are always performed on RSVP-TE based LSPs.
  C. The head-end router performs the CSPF calculation for an LSP.
  D. Each downstream router performs its own CSPF calculation for an LSP.
  C. The head-end router performs the CSPF calculation for an LSP.