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Huawei H12-891 Exam
HCIE-Datacom V1.0 (Page 23 )

Updated On: 9-Feb-2026
Page 23 of 123
PDF with 610 Questions

In the following topology diagram, R1 can access the Internet through R2 and R3, R1 and R2, R1 and R1 An EGP connection is established between R3 , and R2R3 belongs to the same AS, each via BGP Publishing a default route that requires R1 to visit lnternet's traffic preference R2, can the following practices be achieved?

  1. R1 specifies that the peer R3 sets the MED property to 150 in the import direction
  2. R2 specifies that the peer R1 sets the local priority to 150 in the export direction
  3. R2 specifies that the peer R1 sets the MED property to 150 in the export direction
  4. R1 specifies that the peer R2 beats the local priority in the import direction to 150

Answer(s): A,D



Regarding MP-BGP, the following description is wrong?

  1. Radio MP-BGP needs to assign a private label to the VPNv4 route
  2. PE and CE are routed through BGP interaction, you need to create a BGP process on ce for each VPN instance
  3. The message type and VPNv4 routing publishing policy for MP-BGP are the same as for BGP-4
  4. MP-BGP advertises VPNv4 through two attributes, MP_REACH_NLRI and MP_UNREACH_NLRI Route

Answer(s): B



In route-policy, what are the BGP attributes that can be used for the apply clause?

  1. AS-Path
  2. MED
  3. Local-Preference
  4. Day

Answer(s): A,B,C



A company network runs the OSPF protocol, a project in order to understand the OSPF mechanism in the network to perform packet transfer operations, the following description of ospf messages is correct?

  1. The interface sends a Hello packet immediately after joining the OSPF region
  2. LS update packet is sent only when the adjacency relationship is established
  3. When an LsUpdate packet is received, the router must send an LsAck acknowledgment
  4. LS update packet synchronizes the link state database by sending detailed LSA information

Answer(s): A,D



ISlS protocol In broadcast networks and P2P networks, when the router receives LSP, it
needs to use PSNP to confirm and ensure the synchronization of LSDB

  1. True
  2. False

Answer(s): B






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