Nokia Nokia Certifications 4A0-103 Questions & Answers

• Question 211:

  You wish to build an LSP originating on router R1, transiting the path R1-R2-R4-R5-R6, and terminating on router R6. How many strict hops would you define in your path statement?

  A. 4

  B. 1

  C. 5

  D. 6

  Correct Answer: A

• Question 212:

  Click on the exhibit button below.

  

  Given the following fast reroute protected LSPs: -LSP1.R1-R4-R5-R3 -LSP2.R1-R4-R5-R2

  Which routers become bypass tunnel PLRs? Choose two answers

  A. Router R1

  B. Router R2

  C. Router R3

  D. Router R4

  E. Router R5

  Correct Answer: AE

• Question 213:

  Which of the following statements best defines an LSP?

  A. An LSP is a bidirectional path across the MPLS domain.

  B. An LSP is a bidirectional path for a particular FEC across the MPLS domain.

  C. An LSP is a unidirectional path across the MPLS domain.

  D. An LSP is a bidirectional path between adjacent LSRs.

  E. An LSP is a unidirectional path between adjacent LSRs.

  Correct Answer: C

• Question 214:

  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.

  Correct Answer: B

• Question 215:

  Which approach to LSP path diversity provides the most control, but the least flexibility?

  A. Administrative Groups

  B. Shared Risk Link Groups

  C. Strict hop LSP paths

  D. Fast reroute

  Correct Answer: C

• Question 216:

  An LSP path is configured as follows:

  -Shared-explicit reservation style

  -Make-before-break (MBB) enabled

  -500Mpbs bandwidth reserved on a 1Gbps link

  With 100Mbps of unreserved bandwidth remaining, the operator increases the LSP-path's bandwidth reservation to 900Mbps. What happens to the existing LSP?

  A. CSPF looks for the delta bandwidth, taking down the first path if necessary.

  B. CSPF looks for the delta bandwidth, implementing make-before-break.

  C. After 5 failed attempts to find the bandwidth requested, the head end disables the LSP.

  D. CSPF looks for the entire bandwidth requested, implementing MBB.

  Correct Answer: B

• Question 217:

  Click on the exhibit button below:

  

  Consider the following:

  -

  Router R2 is an ABR in OSPF Areas 0 and 1.

  -

  Router R2 advertises the aggregate prefix 10.10.10.0/24 into Area 1.

  -

  Router R1 in Area 0 generates LDP labels for FECs 10.10.102/31 and 10.10.10.4/31 Router R3 in Area 1 places these FECs in its LIB, but it does not place them in its LFIB. What can you do on router R3 to make it populate these labels in its LFIB?

  A.

  Disable route summarization on router R3

  B.

  Enable LDP aggregate prefix match

  C.

  Create an import policy to accept these FECs

  D.

  Disable LDP exact match on the specified FECs

  Correct Answer: B

• Question 218:

  Which of the following statements regarding RSVP-TE is FALSE?

  A. RSVP-TE operates in a downstream unsolicited label advertisement mode.

  B. RSVP-TE makes use of ordered control mode.

  C. RSVP-TE is an MPLS signaling protocol, based on the resource reservation protocol.

  D. RSVP-TE enables the establishment of explicitly routed LSPs that can be automatically routed away from network failures

  E. RSVP-TE supports explicitly routed LSPs using either loose or strict route definitions.

  Correct Answer: A

• Question 219:

  Which of the following reservation styles can be used to prevent both the primary and secondary paths from booking resources on a common link?

  A. Fixed filter

  B. Shared explicit

  C. Standby explicit LSP

  D. Preemptive filter

  E. Link capacity filter

  Correct Answer: B

• Question 220:

  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.

  Correct Answer: AD