Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 21:

  Click on the exhibit.

  

  A fully loose LSP "toR6" is enabled with FRR protection. All links have the same cost. After the link between R2 and R4 goes down, FRR protection repairs the LSP and traffic traverses on R1- R2-R7-R8- R4-R6. Which of the following about this CSPF-enabled LSP on an Alcatel-Lucent 7750 SR is TRUE?

  A. The LSP will stay on the current path indefinitely unless another failure occurs.
  B. The LSP will stay on the current path until the resignal timer expires.
  C. The LSP will switchover to R1-R2-R3-R5-R6 after the resignal timer expires.
  D. The LSP will switchover to R1-R3-R5-R6 after the retry timer expires.
  D. The LSP will switchover to R1-R3-R5-R6 after the retry timer expires.

• Question 22:

  Click on the exhibit.

  

  All links have 1Gbps unreserved bandwidth initially and Shared Explicit reservation style is used. After the LSP's primary and standby secondary paths are signaled, how much unreserved bandwidth is left on the links?

  A. R1-R2 will have 300Mbps left and R2-R4 will have 400Mbps left.
  B. R1-R2 will have 400Mbps left and R2-R4 will have 400Mbps left.
  C. R1-R2 will have 600Mbps left and R2-R4 will have 600Mbps left.
  D. R1-R2 will have 300Mbps left and R2-R4 will have 600Mbps left.
  C. R1-R2 will have 600Mbps left and R2-R4 will have 600Mbps left.

• Question 23:

  If an LSP needs to use an admin group, which of the following configurations is NOT required on the Alcatel-Lucent 7750 SR?

  A. Assign an admin group to a MPLS interface.
  B. Configure CSPF on the LSP.
  C. Configure at least one strict hop on the LSP path.
  D. Configure an "include" or "exclude" statement on the LSP path.
  C. Configure at least one strict hop on the LSP path.

• Question 24:

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

• Question 25:

  Two directly connected routers set different interface Hello timeout values. Router R1 uses 15 seconds, while router R2 uses 30 seconds. Which of the following best describes the LDP adjacency?

  A. The adjacency forms with the lower timeout value.
  B. The adjacency forms with the higher timeout value.
  C. The adjacency is in init state.
  D. The adjacency times out after 30 seconds.
  A. The adjacency forms with the lower timeout value.

• Question 26:

  An Alcatel-Lucent 7750 SR has its TE update threshold enabled with the up threshold set to 40%. The maximum reservable bandwidth on the link is 200M and 30M have already been reserved. When will a TE update be sent on this link?

  A. When the reserved bandwidth goes above 80M.
  B. When the reserved bandwidth goes above 40M.
  C. When an additional 80M bandwidth is reserved.
  D. When an additional 40M bandwidth is reserved.
  A. When the reserved bandwidth goes above 80M.

• Question 27:

  Click on the exhibit.

  

  Which of the following CANNOT be used to ensure the LSP toR6" will follow the path R1-R2- R4-R6?

  A. Admin groups
  B. Hop-limit
  C. Strict hops
  D. TE-Metric
  B. Hop-limit

• Question 28:

  Which of the following is a characteristic of LDP Hello messages?

  A. They are multicast to the All Hosts address.
  B. They are broadcast to the subnet broadcast address.
  C. They are multicast to the All Routers address.
  D. They are broadcast or multicast, depending on the physical media.
  C. They are multicast to the All Routers address.

• Question 29:

  Click on the exhibit button below.

  

  Which fields in this output uniquely identify the RSVP session belonging to a single LSP? (Choose three)

  A. Tunnel ID
  B. Name
  C. LSP ID
  D. To
  A. Tunnel ID
  B. Name
  C. LSP ID

• Question 30:

  Click on the exhibit.

  

  An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?

  A. A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.
  B. The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.
  C. A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.
  D. The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.
  D. The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.