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Huawei H12-891 Exam
HCIE-Datacom V1.0 (Page 14 )

Updated On: 9-Feb-2026
Page 14 of 123
PDF with 610 Questions

How do IGMPv2 routers maintain cinderband group membership? Multi-select

  1. The router queries a specific group
  2. The router maintains a timeout timer for each group membership, refreshes the timer if the receiver host is received, and deletes the group membership if the timer times out
  3. The router periodically sends a Query message, and after the receiver host receives the Query message, it reports a Report message
  4. As soon as the leave message is received, the router immediately deletes the group membership

Answer(s): B,C



Huawei's two switch SWA, SWB is connected together through 7 Ethernets, and static route aggregation is configured, and the corresponding ports on the switch SWA are E1/0/1, E1/02, E1/0/3, E1/0/4, E1/ 0/5, E1/0/6, E1/0/7, configured sequentially as if switch SWA, SWB Each aggregation group supports only 6 ports.

  1. With the same configuration across ports, the Ethemet 1/0/7 port is the aggregate group Unselected port
  2. With the same configuration of each port, the Ethemet 1/0/6 port is the aggregate group Unselected port
  3. With the same configuration of each port, SWA randomly selects one of the 7 ports as the aggregate group Unselected port
  4. With the same configuration of each port, the Ethemet1/0/1 port is the aggregation group Unselected port

Answer(s): A



Regarding the difference between NSR and NSF, the correct one is?

  1. The NSR must rely on a neighbor router to complete
  2. Both NSR and NSF require a neighbor router to complete
  3. NSF must rely on neighbor routers to complete
  4. NSF does not require a neighbor router to complete

Answer(s): C



: :1/128 is the IPV6 loopback address

  1. TRUE
  2. False

Answer(s): A



Router R1 runs the OSPF protocol, use the "display ip routing-table" command to view the routing table of the router R1, the following about the OSPF in the routing table Is the information described correctly?

  1. In the routing table, route table entries identified by the "OSPF" identifier can only be learned through LSAs of Type 3
  2. In the routing table, the routing table entries identified by the "OSPF" identifier can only pass Class 1 LSA
  3. In the routing table, the routing table entries identified by the "OSPF" identifier can be learned through the 1/2/3/5 LSA
  4. In the routing table, the routing table entry identified with the "O_ASE" identifier can only be learned by routing introduction

Answer(s): D






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