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Huawei H12-811 Exam Questions
HCIA-Datacom V1.0 (Page 24 )

Updated On: 19-Feb-2026
Page 24 of 147
PDF with 872 Questions

The following statement about the TTL field in the IP packet header is correct. ()

  1. TTL defines the time interval at which the source host can send data packets
  2. TTL defines the number of packets that the source host can send
  3. Each time a P packet passes through a router, its TTL value will be reduced by 1
  4. Each time an IP packet passes through a router, its TTL value is increased by 1

Answer(s): C



Which of the following statements about the edge port in the RSTP protocol is correct? ()

  1. The edge port discards the received configuration BPDU packet
  2. The edge port can be directly transferred to the Forwarding state from Disable
  3. Edge port participates in RSTP operation
  4. The interconnection ports between switches need to be set as edge ports

Answer(s): B



Which of the following statements about VLANIF interfaces are correct? ()

  1. The VANIF interface does not need to learn MAC addresses.
  2. The VLANTF interface does not have a MAC address.
  3. Different VLANIF interfaces can use the same IP address
  4. The VLANIF interface is a Layer 3 interface

Answer(s): D



The following description about the specified port of the spanning tree is correct ()

  1. Each switch has only one designated port
  2. The designated port can forward configuration BPDU packets to the network segment connected to it
  3. The port on the root switch must be a designated port
  4. The port on the root switch must not be a designated port

Answer(s): B



NAPT distinguishes the IP addresses of different users through the protocol numbers in TCP, UDP, or IP packets ()

  1. True
  2. False

Answer(s): B






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