H12-224 : HCNP-R&S Fast Track (Huawei Certified Network Professional – Routing & Switching Fast Track) : Part 36

  1. Which of the following statements regarding ABR is false?

    • An ABR has multiple LSDBs and maintains one LSDB for each area.
    • An ABR abstracts link state information within its connected non-backbone area as routing information and advertises the routing information within the backbone area.
    • An ABR needs to abstract link state information within the backbone area as routing information and advertises the routing information within all non-backbone areas.
    • An ABR can generate Tye 3 LSAs, Type 4 LSAs, and Type 5 LSAs.
  2. In the OSPF protocol, the unit of bandwidth-reference command is Mbit/s.

    • TRUE
    • FALSE
  3. Which of the following statements regarding the OSPF protocol is false?

    • An ABR is connected to multiple areas and maintains the same LSDB for all areas.
    • The metric of an AS-external-LSA can be specified during the import of external routes and defaults to 1.
    • External roting information can carry a tag, the tag information is contained in a Type 5 or Type 7 LSA.
    • The Link State ID in an ASBR-Summary-LSA is set as the router ID of this ASBR.
  4. In an OSPF routing domain, two routers must be specified as one DR and one BDR in a broadcast or NBMA network with at least two routers.

    • TRUE
    • FALSE
  5. Which of the following statements regarding the LSA header information in AS-External-LSA is false?

    • Which of the following statements regarding the LSA header information in AS-External-LSA is false?
    • Advertising Router indicates the router ID of an ASBR.
    • Net mask indicates the network mask of the destination network segment.
    • Forwarding Address is always 0.0.0.0.
  6. Which of the following statements regarding the alarm is fault “OSPF/2/IFAUTFAIL(OID)[1.3.6.1.2.1.14.16.2.6]: A packet is received on a non-virtual interface from a router whose authentication key or authentication type conflicts with the local authentication key or authentication type. (IfipAddress=[ip-address], AddressLessIf=[interface-index], ProcessId=[process-Id], RouterId=[router-id], PacketSrc=[source-ip-address], ConfigErrorType=[error-type], PacketType=[packet-type], InstanceName=[instance-name])”?

    • Incorrect interface authentication configuration
    • Inconsistent Hello intervals
    • Unmatched subnet masks
    • Inconsistent area IDs
  7. In an IS-IS broadcast network, which multicast MAC address is used by a Level-2 router as the destination address of sent IS-IS Hello packets?

    • 0180-c200-0014
    • 0180-c200-0016
    • 0180-c200-0015
    • 0100-5E00-0002
  8. Which of the following statements regarding IS-IS characteristics are true? (Choose three.)

    • IS-IS supports various area features.
    • IS-IS packet format is simple.
    • IS-IS is suitable for large-capacity route transmission.
    • IS-IS has good scalability.
  9. Multiple BGP processes cannot be configured on the same router.

    • TRUE
    • FALSE
  10. Which of the following messages are supported by BGP? (Choose three.)

    • Keepalive
    • Open
    • Update
    • Hello
  11. Which of the following statements regarding BGP route advertisement rules are true? (Choose three.)

    • A BGP Speaker advertises all BGP routes to new peers immediately after they establish BGP connections.
    • A BGP Speaker advertises all BGP routes to its peers.
    • Generally, when multiple routes exist, a BGP Speaker adds only the optimal route into its routing table.
    • A BGP Speaker advertises the routes learned from an EBGP peer to all BGP peers, including EBGP peers and IBGP peers.
  12. BGP routers establish peer relationships using UDP.

    • TRUE
    • FALSE
  13. Which of the following statements regarding Local-Preference is true?

    • Local-Preference is a well-known mandatory attribute.
    • Local-Preference affects traffic that enters an AS.
    • Local-Preference can be transmitted between ASs.
    • The default Local-Preference value is 100.
  14. Which of the following statements regarding AS_Path is false?

    • AS_Path is a list of ASs that a BGP route passes through.
    • AS_Path is a very important well-known mandatory attribute in BGP.
    • BGP does not accept the routes whose AS_Path attribute contains the local AS number.
    • When a router has two or more routes to the same destination, the router compares the AS_Path attributes of these routes and prefers the route with the longer AS_Path attribute.
  15. BGP is an interdomain routing protocol. Which of the following statements regarding BGP are true? (Choose two.)

    • BGP uses a reliable transport protocol.
    • BGP supports automatic neighbor discovery.
    • BGP supports plaintext authentication.
    • BGP supports rich routing policies.
  16. Which of the following statements regarding PIM-DM is false?

    • PIM-DM stands for Protocol Independent Multicast-Dense Mode. It is a dense-mode multicast routing protocol.
    • PIM-DM assumes that each subnet on a network has at least one receiver station interested in the multicast source.
    • PIM-DM uses the graft mechanism to restore multicast packet forwarding proactively.
    • PIM-DM does not have periodic flood-prune processes.
  17. Which of the following protocols support the any-source multicast (ASM) model? (Choose two.)

    • PIM-SM and IGMPv2
    • PIM-SSM and IGMPv3
    • MBGP and MSDP
    • PIM-DM and IGMPv2
  18. Which of the following statements regarding routing policies is true?

    • Routing policies control packet forwarding based on destination addresses in the routing table.
    • Routing policies are based on the forwarding plane and serve forwarding policies.
    • A routing policy needs to be manually configured hop by hop to ensure that packets are forwarded according to the policy.
    • A routing policy is configured using the policy-based route command.
  19. If one routing protocol only needs to import part of the routing information of another routing protocol and set attributes of the imported routes, only the route-policy can meet this requirement.

    • TRUE
    • FALSE
  20. Which of the following statements regarding join member interfaces are false when link aggregation works in manual mode?

    • An Eth-Trunk cannot be nestled, and a member interface cannot be an Eth-Trunk.
    • An Ethernet interface can join only one Eth-Trunk. Before adding an Ethernet interface to an Eth-Trunk, ensure that the Ethernet interface does not belong to any other Eth-Trunk.
    • If the local device uses the Eth-Trunk, the remote interface directly connected to the member interface must join the Eth-Trunk so that both ends can communicate.
    • An Eth-Trunk can work in Layer 2 or Layer 3 mode. The two working modes can be identified automatically and do not need to be switched manually.