Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 121:

  To enable the LDP-over-RSVP feature, which of the following configurations is NOT required on an Alcatel-Lucent 7750 SR?

  A. Enable the Idp-over-rsvp feature on all PEs and ABRs along the LSP tunnel.
  B. Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.
  C. Configure RSVP-TE LSPs in each area between each PE-ABR and ABR-ABR pair.
  D. Configure T-LDP sessions with the tunneling option.
  B. Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.

• Question 122:

  Click on the exhibit.

  

  What is the possible reason that the label for prefix 192.10.1.2/32 is not active?

  A. The router does not have a route to reach to the peer 10.10.10.2/32.
  B. The router does not have a route to reach to the prefix 192.10.1.2/32.
  C. The router does not have an export policy defined to export the prefix 192.10.1.2/32 into LDP.
  D. The router receives an invalid label for the prefix 192.10.1.2/32 from its peer.
  B. The router does not have a route to reach to the prefix 192.10.1.2/32.

• Question 123:

  Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.

  A. PE, P
  B. LER, LSR
  C. LSR, LER
  D. iLER, eLER
  E. eLER, iLER
  F. P, PE
  D. iLER, eLER

• Question 124:

  Click on the exhibit button below.

  

  Assuming that LSP R1-R2-R3 requests the default fast reroute configuration, which router becomes a DMP for the detour tunnels?

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

• Question 125:

  Click on the exhibit.

  

  The link between routers R4 and R6 are configured with an admin group "red". What happens when the LSP is first signaled?

  A. The LSP will go through the path R1-R2-R4-R6.
  B. The LSP will go through the path R1-R3-R5-R6.
  C. The LSP is down because router R1 detects that no path can meet its constraints.
  D. The LSP is down because router R4 detects that no path can meet its constraints.
  C. The LSP is down because router R1 detects that no path can meet its constraints.

• Question 126:

  Which MPLS label mode propagates a label mapping only for the FEC for which a router has a label mapping for the FEC's next-hop?

  A. Independent control mode
  B. Ordered control mode
  C. Liberal label retention mode
  D. Conservative label retention mode
  E. Downstream on demand label distribution mode
  B. Ordered control mode

• Question 127:

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

• Question 128:

  Click on the exhibit button below.

  

  Consider the output shown; why is the label in bold font not in use?

  A. The router cannot do a SWAP of this label.
  B. The label does not match the egress label for the same FEC.
  C. The label is for a FEC for which the next-hop is the peer router
  D. The label was signaled in error.
  C. The label is for a FEC for which the next-hop is the peer router

• Question 129:

  Which of the following about the RSVP-TE Hello protocol is FALSE?

  A. The Hello protocol can speed up convergence without reducing refresh time.
  B. Hello messages are sent after at least one RSVP session is active on the interface.
  C. An interface with multiple RSVP sessions sends Hello messages for each session.
  D. An RSVP neighbor is declared down if Hello messages are not received within the Hello timeout.
  C. An interface with multiple RSVP sessions sends Hello messages for each session.

• Question 130:

  Which of the following conditions must a router meet for an LSP path's RSVP session to exist? Choose two answers

  A. The router must build the Path State Block (PSB).
  B. The router must build the Reservation State Block (RSB).
  C. The router must build the Session State Block (SSB)
  D. The router must send the second RESV refresh message.
  E. The router must receive the second PATH refresh message.
  A. The router must build the Path State Block (PSB).
  B. The router must build the Reservation State Block (RSB).