Which of the following statements are true about predefined security zones on a firewall?

Huawei firewalls provide four commonly predefined security zones: Local, Trust, DMZ, and Untrust. The Local zone represents the firewall itself, including traffic generated by or destined for the device, and has the highest default security priority of 100. The Trust zone normally represents an organization’s protected internal network and has a default priority of 85, not 95. Therefore, option C is false.

The DMZ typically hosts public-facing or semi-trusted resources, such as web, email, and application servers. Its default priority is 50, placing it between the trusted internal network and the external untrusted network. The Untrust zone normally represents the Internet or another uncontrolled network and has the lowest predefined priority of 5.

Zone priority expresses the relative security level used to classify inbound and outbound traffic direction; it does not independently permit traffic. Security policies still determine whether matched traffic is allowed or denied. Huawei’s SD-WAN design uses Trust and Untrust zones on CPEs, and iMaster NCE can orchestrate the corresponding zones and firewall policies for Internet-access protection.

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