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  • Exam Name: Huawei Certified ICT Professional - Constructing Infrastructure of Security Network
  • Last Update: 15-Dec-2025
  • Questions and Answers: 217
  • Single Choice: 146 Q&A's
  • Multiple Choice: 71 Q&A's

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H12-721 Questions and Answers

Question # 1

According to the dual-system hot backup network diagram, what are the correct descriptions in the following dual-system hot backup preemption function?

H12-721 question answer

A.

VRRP backup group itself has a preemption function. As shown in the figure, after USG_A fails and recovers, USG_A will use the preemption function to change to the master state again.

B.

The preemption function of the V VGMP management group is similar to that of the VRRP backup group. When the faulty backup group in the management group recovers, the management group priority will be restored.

C.

By default, when the preemption delay is 0, the preemption is never preempted.

D.

After the VRRP backup group is added to the VGMP management group, the original preemption function on the backup group will be invalid.

Question # 2

Virtual firewall technology can achieve overlapping IP addresses.

A.

TRUE

B.

FALSE

Question # 3

Avoid DHCP server spoofing attacks. DHCP snooping is usually enabled. What is the correct statement?

A.

connected user's firewall interface is configured in trusted mode

B.

The firewall interface connected to the DHCP server is configured as untrusted mode.

C.

DHCP relay packets received on the interface in the untrusted mode are discarded.

D.

The DHCP relay packet received in the D trusted mode and passed the DHCP snooping check.

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