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Huawei H12-821_V1.0 Exam - Topic 5 Question 99 Discussion

An IP prefix list is a common matching tool used in routing policies. Which of the following cannot be configured as matching conditions in an IP prefix list on a Huawei router?
A) Port number
B) Mask
C) Action
D) Index

Huawei H12-821_V1.0 Exam - Topic 5 Question 99 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam
Question #: 99
Topic #: 5
[All H12-821_V1.0 Questions]

An IP prefix list is a common matching tool used in routing policies. Which of the following cannot be configured as matching conditions in an IP prefix list on a Huawei router?

Show Suggested Answer Hide Answer
Suggested Answer: A

IP Prefix List Matching Conditions

An IP prefix list matches based on:

Mask: Specifies the subnet mask length.

Action: Specifies whether to permit or deny.

Index: Orders the rules within the prefix list.

Port numbers are not applicable as matching conditions in an IP prefix list.

HCIP-Datacom-Core Reference

IP prefix list configurations are detailed in the routing policy and route filtering chapters.


by Coleen at Jun 19, 2026, 01:08 AM

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Stevie
3 days ago
C) Action could be tricky too, but I lean towards A) Port number.
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Katina
8 days ago
Agreed, A) Port number seems off. Mask and Index are valid.
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Timmy
13 days ago
I think the answer is A) Port number. It doesn't match IP prefixes.
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Chun
19 days ago
I thought you could configure actions too, but maybe not in this context?
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Abel
24 days ago
Index is just for reference, not a matching condition.
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Tamera
29 days ago
Wait, can you really not use port numbers? That seems odd.
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Georgeanna
1 month ago
Totally agree, it's all about masks and actions.
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Anastacia
1 month ago
Port number can't be used in prefix lists.
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Jesusa
1 month ago
From what I remember, the action is more about what to do with the match rather than a condition itself, so I think that's the answer.
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Royce
2 months ago
I feel like the index might be used for organization, but I'm not completely clear on whether it can be a matching condition.
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Lilli
2 months ago
I think we practiced a question similar to this, and I recall that port numbers aren't typically part of prefix lists.
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Chantell
2 months ago
I remember studying that IP prefix lists are mainly about matching IP addresses and masks, but I'm not sure about the action part.
upvoted 0 times
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