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NVIDIA NCA-AIIO Exam - Topic 3 Question 20 Discussion

Which is the best PUE value for a data center?
A) PUE of 1.2
B) PUE of 3.5
C) PUE of 5.0
D) PUE of 2.0

NVIDIA NCA-AIIO Exam - Topic 3 Question 20 Discussion

Actual exam question for NVIDIA's NCA-AIIO exam
Question #: 20
Topic #: 3
[All NCA-AIIO Questions]

Which is the best PUE value for a data center?

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Suggested Answer: A

Power Usage Effectiveness (PUE) measures data center efficiency, with an ideal value of 1.0 (all power used by IT equipment). A PUE of 1.2, indicating only 20% overhead, is highly efficient and closer to the ideal than 2.0 (100% overhead), 3.5, or 5.0, making it the best among the options for energy-conscious AI deployments.

(Reference: NVIDIA AI Infrastructure and Operations Study Guide, Section on Data Center Efficiency)


by Amira at Jun 01, 2026, 05:43 PM

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Lyla
4 days ago
Agreed! Lower PUE means better efficiency.
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Curt
10 days ago
I think A) PUE of 1.2 is the best.
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Paulene
15 days ago
Not sure about 3.5, seems way too high!
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Mitzie
20 days ago
I think 2.0 is pretty decent too.
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Van
25 days ago
Wait, a PUE of 5.0? That can't be right!
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Eric
1 month ago
Definitely agree, anything below 1.5 is great.
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Malika
1 month ago
A PUE of 1.2 is considered excellent!
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Lucina
1 month ago
I recall that the best PUE values are usually below 2.0, so A) PUE of 1.2 seems right, but I could be mixing it up with another metric.
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Izetta
2 months ago
I feel like I read that anything above 2.0 is pretty inefficient, so I’d lean towards A) or D), but I’m not confident.
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Moon
2 months ago
I practiced a similar question, and I believe a PUE around 2.0 is still considered efficient for some data centers.
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Alex
2 months ago
I think I remember that a lower PUE is better, so maybe A) PUE of 1.2? But I'm not entirely sure.
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