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HCIP-Datacom-Advanced Routing & Switching Technology Questions 201–208 (page: 27)

Updated On: 14-Aug-2026

EGP authentication can prevent illegal routers from establishing neighbors with BCP routers. BCP authentication can be divided into MD5 authentication and Keychain authentication.
Which of the following BGP messages will carry BCGP Keychain authentication information?

  1. Open
  2. Update
  3. Notification
  4. Keepalive

Answer(s): A,B,C,D



Which statements are wrong about OSPF Router LSA and Network LSA? (Choose two.)

  1. The router running DSPF must generate Network LSA
  2. Routers running OSPF must generate Router LSA
  3. There must be both Router LSA and Network LSA in the OSPF network
  4. Network LSA carries both topology and routing information

Answer(s): A,C



Which of the following operations may affect the normal operation of the customer network? (Choose three.)

  1. Device naming
  2. Software upgrade
  3. Hardware expansion
  4. Routing protocol configuration changes

Answer(s): B,C,D



What are the work that needs to be performed in the closing phase after the cutover acceptance is completed?

  1. Transition training
  2. Data transfer
  3. Acceptance summary
  4. On-site defense

Answer(s): A,B,C,D



In the intra-domain MPLS VPN network, when a data packet enters the public network and is forwarded, it will be encapsulated with two layers of MPLS labels.
Which of the following description is wrong about the two layers of labels? (Choose two.)

  1. The outer label of MPLS VPN is allocated by the LDP protocol or statically, and the inner label is allocated by the MP-BGP neighbor at the correct end.
  2. By default, the outer label is ejected before the packet is forwarded to the last-hop device
  3. The outer label of MPLS VPN is called the private network label. The inner label is called the public network label.
  4. The outer label is used to correctly send the data packet to the corresponding VPN on the PE device

Answer(s): C,D



In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following description is correct about the processing of the data packet? (Choose two.)

  1. The packet is forwarded to the Egress PE device after the outer label pops up on the penultimate hop device
  2. The Egress PE device correctly sends the data packet to the corresponding VPN according to the inner label
  3. The outer label of the packet received by the penultimate hop device is 3
  4. The Egress PE device receives untagged IP packets

Answer(s): A,B



After the cutover is completed, which items generally need to be checked? (Choose two.)

  1. Software version
  2. Physical topology
  3. Data flow
  4. Control plane entries

Answer(s): C,D



Which of the following statements about the OSPFv3 message format is correct? (Choose three.)

  1. Hello message no longer contains address information and Interface ID
  2. OSPF version number changed from 2 to 3
  3. Removed Authentication and Auth Type fields
  4. There is no change in the option field of the Hello message

Answer(s): A,B,C



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