NCA-AIIO by NVIDIA Actual Free Exam Questions And Answers

Question 1

Which data format is best for efficient and accurate AI model training?

A. Double-precision floating point (FP64).

B. Brain Floating-point format (BF16).

C. Mixed precision (FP8/FP16/TF32/FP32).

Discussion 0

Correct Answer: C Vote an answer

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Question 2

In a 512-GPU training cluster, engineers observe poor scaling efficiency when moving from single-node to multi-node runs, even though the compute nodes themselves are not fully utilized and the model code has already been optimized. Profiling shows that collective all-reduce operations dominate step time as node count increases. Why should InfiniBand be chosen over traditional Ethernet for this type of multi-node AI training environment?

A. It is significantly easier to deploy and maintain than any form of Ethernet and requires almost no specialized networking expertise.

B. It offers very high bandwidth, ultra-low latency, and hardware support for collective operations (for example, all-reduce) that improve distributed training scalability.

C. It always consumes less power than any alternative data center networking technology, regardless of topology or workload.

D. It inherently guarantees end-to-end network security without the need for additional configuration or complementary security controls.

Discussion 0

Correct Answer: B Vote an answer

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Question 3

How is out-of-band management utilized by network operators in an AI environment?

A. It is used to manage the data throughput of AI applications by prioritizing network traffic.

B. It is used to increase the computational power of AI models by adapting additional processing resources.

C. It is used to directly manage the AI model's learning rate during training sessions.

D. It is used to remotely manage and troubleshoot network devices independently of the production network.

Discussion 0

Correct Answer: D Vote an answer

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Question 4

A simulation is bottlenecked by memory transfer speeds. Which GPU architectural feature addresses this?

A. Dedicated and proprietary inference ASICs.

B. Direct wiring of GPUs as main disk controllers.

C. Increase number of IO ports for PCIe devices.

D. Large shared memory and high-bandwidth buses.

Discussion 0

Correct Answer: D Vote an answer

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Question 5

How is the architecture different in a GPU versus a CPU?

A. A GPU acts as a PCIe controller to maximize bandwidth.

B. A GPU is a single large and complex core to support massive compute operations.

C. A GPU is architected to support massively parallel execution of simple instructions.

Discussion 0

Correct Answer: C Vote an answer

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Question 6

Which of the following statements correctly differentiates between AI, Machine Learning, and Deep Learning?

A. Machine Learning is a subset of AI, and AI is a subset of Deep Learning.

B. AI and Deep Learning are the same, while Machine Learning is a separate concept.

C. Deep Learning is a subset of Machine Learning, and Machine Learning is a subset of AI.

D. AI is a subset of Machine Learning, and Machine Learning is a subset of Deep Learning.

Discussion 0

Correct Answer: C Vote an answer

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NVIDIA-Certified Associate AI Infrastructure and Operations - NCA-AIIO Exam Practice Test

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