In the USG series firewall, what is the security priority of the Untrust zone?

Question

Options

• A10
• B20
• C5
• D100

• A
  17% (5)
• B
  7% (2)
• C
  70% (21)
• D
  7% (2)

Explanation

In Huawei's USG series firewall, the Untrust zone is assigned a security priority of 5, making option C correct. This is the lowest predefined priority value, which reflects the untrusted nature of the zone - typically representing the public internet or any external network where traffic is considered inherently untrustworthy.

Option A (10) and B (20) are incorrect because no standard predefined zone uses those priority values; they are simply plausible-looking numbers. Option D (100) is wrong because 100 is the priority assigned to the Local zone, which represents the firewall device itself and carries the highest trust level.

The four predefined zones and their priorities follow a clear hierarchy: Local = 100, Trust = 85, DMZ = 50, and Untrust = 5. A useful way to remember the Untrust zone's value is that 5 is the lowest of the four, matching the fact that Untrust is the least trusted zone in the hierarchy.

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