Nokia 4A0-D01 Exam - Topic 4 Question 15 Discussion

Actual exam question for Nokia's 4A0-D01 exam

Question #: 15
Topic #: 4

[All 4A0-D01 Questions]

Which of the following statements about a CPM-filter policer is FALSE?

AHierarchical policing of control plane traffic is supported.

BThe system-cpu-policer is hardware-based.

CThe system-cpu-policer acts on the aggregate traffic from all line cards.

DCPM-filter entries can use both a distributed-policer and a system-cpu-policer.

Show Suggested Answer

Suggested Answer: B

The system-cpu-policer in Nokia SR Linux is software-based, not hardware-based. It acts on aggregate control plane traffic and supports hierarchical policing with CPM-filter entries using both distributed and system-cpu-policers.

by Owen at Mar 04, 2026, 09:10 AM

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Donte

5 days ago

C) is definitely true, it aggregates all line cards.

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Tarra

10 days ago

I thought B) was hardware-based too, seems right.

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Pamela

15 days ago

A) is true, hierarchical policing is supported.

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Golda

20 days ago

I remember that hierarchical policing is definitely supported, so I think option A is true. But I'm not confident about the aggregate traffic part in option C.

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Herminia

25 days ago

I thought the system-cpu-policer was hardware-based, but now I'm second-guessing myself. Is it possible that option B is the false one?

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Estrella

1 month ago

I feel like I've seen a similar question before, and I think option D might be the tricky one. I can't recall if both types of policers can be used together.

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Louisa

1 month ago

I remember studying about CPM-filter policers, but I'm not entirely sure which statement is false. I think it might be related to the hardware aspect.

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