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Free H12-721 Exam Braindumps
HCNP-Security-CISN (Huawei Certified Network Professional - Constructing Infrastructure of Security Network) Questions 41–45 (page: 10)

Updated On: 10-Feb-2026
Page 10 of 50
PDF with 245 Questions

Which of the following statements is correct about the blacklist? (Choose three answers)

  1. When you log into a device and incorrectly enter the username/password three times, the IP address of the administrator will be added to the blacklist via Web or Telnet.
  2. Blacklist is divided into static and dynamic.
  3. When the device is perceived to have behavioral characteristics of packets to a user's attempt to attack a specific IP address, it will use a dynamic IP address blacklist technology.
  4. When the packet reaches the firewall, the first thing to check for is packet filtering, and then it will match the blacklist.

Answer(s): A,B,C



In a stateful standby failover switchover what will the firewall do? (Choose two answers)

  1. Send a gratuitous ARP
  2. Send proxy ARP
  3. The VRRP backup group virtual address will be unavailable
  4. The switchover automatically updates the relevant MAC table

Answer(s): A,D



In L2TP over IPsec scenarios, The USG device will first use the original data packet that is encrypted using IPsec, and then encapsulates the data packets using L2TP.

  1. TRUE
  2. FALSE

Answer(s): B



The Huawei abnormal flow cleaning solution must be deployed in an independent testing center.

  1. TRUE
  2. FALSE

Answer(s): B



Regarding IKE DPD, which statement is incorrect?

  1. IKE is used to detect the state of a neighbor
  2. DPD regularly send messages between IKE peers.
  3. When DPD messages are not received within the specified time DPD sends a request to the remote side and waits for response packets.
  4. DPD sends encrypted queries only when the timer expires.

Answer(s): B



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