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Free H12-221 Exam Braindumps (page: 17)

Page 16 of 57
PDF with 225 Questions

Which of the following statements regarding the Reverse Path Forwarding (RPF) mechanism are
true? (Select 2 answers)

  1. Multicast RPF does not depend on unicast routing.
  2. All multicast protocols adopt the RPF mechanism.
  3. A router discards the received multicast packets if the RPF check fails.
  4. The RPF mechanism has two functions: It prevents multicast routing loops and the forwarding of redundant multicast packets.

Answer(s): C,D



Which of the following statements about a neighbor state machine is true?

  1. The Attempt state appears only on an NBMA network or a broadcast network.
  2. The Attempt state appears only on an NBMA network or a P2MP network.
  3. LSR packets can be sent in the Exchange state.
  4. The Full state indicates that LSDB synchronization is complete. No LSDB information will be exchanged.

Answer(s): C



Which of the following methods are supported by OSPF for delivering default routes? (Select 3 answers)

  1. Delivery using an ABR
  2. Delivery using a backbone router
  3. Forcible delivery
  4. Non-forcible delivery

Answer(s): A,C,D



Which of the fallowings are OSPF packet types? (Select 3 answers)

  1. LSA
  2. LS Request
  3. LSP
  4. LS Update
  5. LSAck

Answer(s): B,D,E






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