4A0-103

4A0-103 practice questions, page 6 of 10, with answer review and explanations.

Question 26

Which of the following statements regarding RSVP refresh reduction are true? (Choose two)

  1. Message-IDs replace individual refresh messages.
  2. Refresh reduction applies only to reservation messages.
  3. RSVP generates a summary-refresh message for each LSP.
  4. An LSP state change causes an incremented Message-ID.

Question 27

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

  1. Fixed filter
  2. Shared explicit
  3. Standby explicit LSP
  4. Preemptive filter
  5. Link capacity filter

Question 28

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

  1. RSVP-TE operates in a downstream unsolicited label advertisement mode.
  2. RSVP-TE makes use of ordered control mode.
  3. RSVP-TE is an MPLS signaling protocol, based on the resource reservation protocol.
  4. RSVP-TE enables the establishment of explicitly routed LSPs that can be automatically routed away from network failures
  5. RSVP-TE supports explicitly routed LSPs using either loose or strict route definitions.

Question 29

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?

  1. Disable route summarization on router R3
  2. Enable LDP aggregate prefix match
  3. Create an import policy to accept these FECs
  4. Disable LDP exact match on the specified FECs

Question 30

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?

  1. CSPF looks for the delta bandwidth, taking down the first path if necessary.
  2. CSPF looks for the delta bandwidth, implementing make-before-break.
  3. After 5 failed attempts to find the bandwidth requested, the head end disables the LSP.
  4. CSPF looks for the entire bandwidth requested, implementing MBB.