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H13-821_V3.0 · Question #20

In order to prevent abnormal access by malicious users, an Internet company controls the data flow in and out of the subnet by configuring outbound/inbound rules associated with the company's subnet…

The correct answer is C. The smaller the value of "Priority", the higher the priority. In Network ACL rules, a lower numerical priority value means the rule is evaluated first, giving it higher precedence - so option C is correct. This convention is standard across many networking platforms (such as AWS and Huawei Cloud), where rule 1 is checked before rule 100…

Network and Security Solution Design on Huawei Cloud

Question

In order to prevent abnormal access by malicious users, an Internet company controls the data flow in and out of the subnet by configuring outbound/inbound rules associated with the company's subnet to protect the security of the company's subnet. Regarding the priority description of network ACL rules, which one is correct?

Options

  • AThe value of "priority" has nothing to do with the priority
  • BThe smaller the value of "Priority", the lower the priority
  • CThe smaller the value of "Priority", the higher the priority
  • DThe larger the value of "Priority", the higher the priority

How the community answered

(33 responses)
  • A
    3% (1)
  • B
    6% (2)
  • C
    82% (27)
  • D
    9% (3)

Explanation

In Network ACL rules, a lower numerical priority value means the rule is evaluated first, giving it higher precedence - so option C is correct. This convention is standard across many networking platforms (such as AWS and Huawei Cloud), where rule 1 is checked before rule 100, allowing administrators to place more specific or critical rules at lower numbers. Option A is wrong because the priority value directly determines evaluation order. Options B and D are inverses of the correct behavior - they both claim a larger value means higher priority, which is the opposite of how ACL rules work. Memory tip: think of priority values like race positions - first place (the lowest number) wins, meaning a smaller number gets processed first and holds the highest priority.

Topics

#network ACL#rule priority#subnet security#inbound outbound rules

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