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Huawei H12-811 Exam Questions
HCIA-Datacom V1.0 (Page 2 )

Updated On: 16-Feb-2026
Page 2 of 147
PDF with 872 Questions

As shown in the figure, there are three data packets captured by the administrator on the network. Which of the following statements is incorrect? (Single choice question)

Source destination protocol info
10.0.12.110.0.12.2TCp50190>telnet［SYN］seq＝0win＝8192Len＝0mss＝146010.0.12.210.0.12.1
TCP telnet:50190 SYN, ACK seg-0 Ack-1 win-8192 Len-0mss=1460
10.0.12.110.0.12.2 TCP50190>telnet(ACK)seq-1Ack=1win=81921en=0

  1. None of these three data packets contain application layer data
  2. These three data packets represent the three-way handshake process of TCP
  3. The telnet client uses port 50190 to establish a connection with the server
  4. The IP address of the telnet server is 10.0.12.1. The IP address of the telnet client is 10.0.12.2

Answer(s): D



The following description of the Layer 2 Ethernet switch is incorrect ().

  1. Need to make certain modifications to the layer 3 header of the forwarded message, and then forward it
  2. Able to learn MAC. Address
  3. Forward according to the Layer 2 header information of the Ethernet frame
  4. Layer 2 Ethernet switch works at the data link layer

Answer(s): A



When learning this switch needs to forward the frame with the destination MAC. The address is 5489-98ec-f011, the following description is correct ()

  1. The switch will flood the frame on all ports except the port that received the frame
  2. The switch will send a message that the destination is unreachable to the source device
  3. The switch does not find a matching entry in the MA address table, so the frame will be discarded
  4. The switch needs to discover the MAC by sending a request..Device with address 548998ec-f011

Answer(s): A



What is the range of VLAN ID that users can use? ()

  1. 1-4096
  2. 1-4094
  3. 0-4096
  4. 0-4095

Answer(s): B



By default, in the SNMP protocol, which port number does the agent process use to send alarm messages to N? ()

  1. 164
  2. 163
  3. 162
  4. 161

Answer(s): C






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