Nokia 4A0-103 Online Practice Questions and Exam Preparation

Nokia 4A0-103 Online Questions & Answers

• Question 81:

  Which of the following configurations allow a router to periodically attempt to move LSP traffic to a better path, if the head end can find one?

  A. configure router mpls retry-timer 30
  B. configure router mpls resignal-timer 30
  C. configure router mpls retry-attempts 30
  D. configure router mpls global-revertive 30
  B. configure router mpls resignal-timer 30

• Question 82:

  How many bits of the MPLS header are used for the label field?

  A. 16
  B. 20
  C. 24
  D. 25
  E. 32
  B. 20

• Question 83:

  Which of the following describes what happens when facility backup fast reroute is enabled for a LSP? Choose three answers.

  A. Each PLR will signal a bypass tunnel that avoids the next-hop node or link.
  B. When a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
  C. The ingress router will include a RRO object in the path message to indicate the routers that should be PLRs and MPs along the protected path.
  D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish bypass tunnels.
  E. When the bypass tunnel is in use, the MP will include the RRO object in its PathErr message, with the local protection in use flag set to notify the ingress router that it is using the bypass tunnel.
  A. Each PLR will signal a bypass tunnel that avoids the next-hop node or link.
  B. When a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
  D. The ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish bypass tunnels.

• Question 84:

  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.
  A. Message-IDs replace individual refresh messages.
  D. An LSP state change causes an incremented Message-ID.

• Question 85:

  When configuring an LSP for fast reroute one-to-one protection, which of the following statements is true?

  A. The LSP can also use facility backup.
  B. The LSP is limited to node protection.
  C. You cannot request bandwidth on the protected LSP.
  D. Node protection can be disabled.
  D. Node protection can be disabled.

• Question 86:

  Which of the following devices can originate an opaque LSA?

  A. TE enabled OSPF routers
  B. Backbone router only
  C. ABR only
  D. ASBR only
  A. TE enabled OSPF routers

• Question 87:

  If an LSP's loose primary path includes the statement "include green" and "exclude red;" how does CSPF choose the LSP's path?

  A. CSPF chooses a link that is a member of both administrative groups
  B. CSPF chooses only those links that are NOT members of the green admin group
  C. CSPF prunes the green links and uses these links for the secondary path
  D. CSPF signals the LSP path over the green links only, and prunes all other links
  D. CSPF signals the LSP path over the green links only, and prunes all other links

• Question 88:

  An LSP is configured with a fully loose path and CSPF is not enabled. An LSR receives the first PATH message for this LSP. Which of the following is NOT performed by the LSR?

  A. The LSR regenerates and forwards a new PATH message.
  B. The LSR stores the PATH message in the PSB.
  C. The LSR forwards the PATH message based on the HOP object in the RSB.
  D. The LSR looks up the PATH message's destination IP address in the FIB.
  C. The LSR forwards the PATH message based on the HOP object in the RSB.

• Question 89:

  Which of the following regarding MPLS encapsulation for VPRN services is TRUE?

  A. The customer's Layer 3 header is removed at the iLER.
  B. The customer's Layer 2 header is removed at the iLER.
  C. The customer's Layer 3 header is removed at the eLER.
  D. The customer's Layer 2 header is removed at the eLER.
  A. The customer's Layer 3 header is removed at the iLER.

• Question 90:

  Which of the following about the use of RRO in fast reroute is FALSE?

  A. RRO is used to report the protection tunnel status to the head-end router.
  B. RRO contains the MP information that is required by a PLR for facility protection.
  C. RRO contains the label information that is expected by an MP for facility protection.
  D. RRO is used to inform downstream routers about the protection type requested.
  D. RRO is used to inform downstream routers about the protection type requested.