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Huawei H12-721 Exam
HCNP-Security-CISN (Huawei Certified Network Professional - Constructing Infrastructure of Security Network) (Page 9 )

Updated On: 9-Feb-2026
Page 9 of 50
PDF with 245 Questions

Regarding the Radius authentication process, refer to the following steps:
1. Network device Radius client (network access server) receives the user name and password, and sends an authentication request to the Radius server.
2. When a user logs into the USG access servers and other network devices, the user name and password will be sent to the network access server.
3. After the Radius server receives a valid request to complete the request and the required user authorization information is sent back to the client.

Which of the following is a correct sequence?

  1. 1-2-3
  2. 2-1-3
  3. 3-2-1
  4. 2-3-1

Answer(s): B



With IP-link, information is sent to the destination address specified with continuous ICMP packets or ARP request packets, and checks whether you can receive the destination IP response icmp echo reply packets or ARP reply packets.

  1. TRUE
  2. FALSE

Answer(s): A



With the Huawei abnormal flow cleaning solution, deployed at the scene of a bypass, dynamic routing drainage occurs without human intervention. When an abnormality is detected, the management center will generate a draining task automatically, and the task is done directly after the drainage cleaning equipment is issued if testing equipment.

  1. TRUE
  2. FALSE

Answer(s): A



Which of the following statements is wrong regarding IPsec?

  1. Under Transfer Mode, ESP does not validate the IP header
  2. AH can not verify that the data uses encrypted packets
  3. ESP can support NAT traversal
  4. The AH protocol uses the 3DES algorithm for data validation

Answer(s): D



Malformed packet attack techniques would use some legitimate packet data for network reconnaissance or testing. Tthese packets are legitimate for the application type; while normal network packets are rarely used.

  1. TRUE
  2. FALSE

Answer(s): B






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