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Cisco 800-150 Exam - Topic 2 Question 21 Discussion

What must be considered when installing a new fan module in a fixed-configuration Cisco Nexus switch?
C) The airflow direction must be consistent with other installed modules.
A) The size of the fan module must match the power supply.
B) Fan modules can be installed only when the switch is powered off
D) The fan module must be from the same manufacturing batch as the others.

Cisco 800-150 Exam - Topic 2 Question 21 Discussion

Actual exam question for Cisco's 800-150 exam
Question #: 21
Topic #: 2
[All 800-150 Questions]

What must be considered when installing a new fan module in a fixed-configuration Cisco Nexus switch?

Show Suggested Answer Hide Answer
Suggested Answer: C

When installing a fan module in a Cisco Nexus fixed-configuration switch, it's crucial to ensure that the airflow direction of the new fan matches the existing airflow configuration. Mismatched airflow directions can lead to inefficient cooling or even overheating of components, potentially affecting the performance or lifespan of the switch.

Cisco offers fan modules in front-to-back or back-to-front airflow variants, and consistency is required for proper thermal management. These modules are also typically hot-swappable, meaning powering down the switch is not necessary.


by Kimbery at May 31, 2026, 06:39 AM

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Alisha
3 days ago
I heard fan modules should be installed when powered off.
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Tiffiny
8 days ago
Definitely need to match that too.
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Markus
13 days ago
But what about the power supply size?
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Royal
19 days ago
Agreed, consistency is key!
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Mollie
24 days ago
I think airflow direction is crucial.
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Larae
29 days ago
Wait, you have to power off the switch? Really?
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Shaniqua
1 month ago
Yeah, size and power supply compatibility is key.
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Minna
1 month ago
Definitely need to match the manufacturing batch!
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Felix
1 month ago
I thought you could swap fan modules while the switch is on?
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Melynda
2 months ago
Don't forget about the airflow direction!
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Joaquin
2 months ago
I’m uncertain about the power supply matching the fan module size; it seems like it could be relevant, but I can't remember the details.
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Tamekia
2 months ago
I practiced a question like this before, and I feel like the switch definitely needs to be powered off for installation.
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Fatima
2 months ago
I think fan modules need to be from the same batch, but I can't recall if that's a strict requirement or just a recommendation.
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Keneth
2 months ago
I remember something about airflow direction being really important, but I'm not sure if it's the only thing to consider.
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