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  1. Home
  2. NVIDIA Certification
  3. NCA-AIIO Exam
  4. NVIDIA.NCA-AIIO.v2025-09-29.q49 Dumps
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Question 1

You are tasked with deploying an AI model across multiple cloud providers, each using NVIDIA GPUs.
During the deployment, you observe that the model's performance varies significantly between the providers, even though identical instance types and configurations are used. What is the most likely reason for this discrepancy?

Correct Answer: A
Performance variations across cloud providers with identical NVIDIA GPU instances likely stem from provider-specific optimizations and software stacks (e.g., CUDA versions, driver tuning), affecting how NVIDIA GPUs (e.g., A100) execute the model. NVIDIA's DGX Cloud integrates with providers, but each may tweak configurations differently.
Framework versions (Option B) could contribute but are less likely if controlled. Cooling (Option C) impacts hardware longevity, not immediate performance. GPU architecture (Option D) is identical per instance type.
NVIDIA acknowledges provider-specific stacks as a key factor.
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Question 2

In an AI cluster, what is the purpose of job scheduling?

Correct Answer: C
Job scheduling in an AI cluster assigns workloads (e.g., training, inference) to available compute resources (GPUs, CPUs), optimizing resource utilization and ensuring efficient execution. It's distinct from data analysis, monitoring, or software management, focusing solely on workload distribution.
(Reference: NVIDIA AI Infrastructure and Operations Study Guide, Section on Job Scheduling)
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Question 3

In your AI data center, you need to ensure continuous performance and reliability across all operations. Which two strategies are most critical for effective monitoring? (Select two)

Correct Answer: D,E
For continuous performance and reliability:
* Deploying a comprehensive monitoring system(D) with real-time metrics (e.g., CPU/GPU usage, memory, temperature via nvidia-smi) enables immediate detection of issues, ensuring optimal operation in an AI data center.
* Implementing predictive maintenance(E) uses historical data (e.g., failure patterns) to anticipate and prevent hardware issues, enhancing reliability proactively.
* Weekly reviews(A) lack real-time responsiveness, risking downtime.
* Manual logs(B) are slow and error-prone, unfit for continuous monitoring.
* Disabling monitoring(C) reduces overhead but blinds operations to issues.
NVIDIA's monitoring tools support D and E as best practices.
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Question 4

Your AI team is deploying a large-scale inference service that must process real-time data 24/7. Given the high availability requirements and the need to minimize energy consumption, which approach would best balance these objectives?

Correct Answer: A
Implementing an auto-scaling group of GPUs (A) adjusts the number of active GPUs dynamically based on workload demand, balancing high availability and energy efficiency. This approach, supported by NVIDIA GPU Operator in Kubernetes or cloud platforms like AWS/GCP with NVIDIA GPUs, ensures 24/7 real-time processing by scaling up during peak loads and scalingdown during low demand, reducing idle power consumption. NVIDIA's power management features further optimize energy use per active GPU.
* Fixed GPU cluster at 50% capacity(B) wastes resources during low demand and may fail during peaks, compromising availability.
* Batch processing off-peak(C) sacrifices real-time capability, unfit for 24/7 requirements.
* Single GPU at full capacity(D) risks overload, lacks redundancy, and consumes maximum power continuously.
Auto-scaling aligns with NVIDIA's recommended practices for efficient, high-availability inference (A).
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Question 5

Your company is running a distributed AI application that involves real-time data ingestion from IoT devices spread across multiple locations. The AI model processing this data requires high throughput and low latency to deliver actionable insights in near real-time. Recently, the application has been experiencing intermittent delays and data loss, leading to decreased accuracy in the AI model's predictions. Which action would best improve the performance and reliability of the AI application in this scenario?

Correct Answer: A
Real-time AI applications, especially those involving IoT devices, depend on rapid and reliable data ingestion to maintain low latency and high throughput. Intermittent delays and data loss suggest a bottleneck in the network connecting the IoT devices to the processing system. Implementing a dedicated, high-bandwidth network link (e.g., using NVIDIA's InfiniBand or high-speed Ethernet solutions) ensures that data flows seamlessly from distributed IoT devices to the AI cluster, reducing latency and preventing packet loss. This aligns with NVIDIA's focus on high-performance networking for distributed AI, as seen in DGX systems and NVIDIA BlueField DPUs, which offload and accelerate network traffic.
Switching to batch processing (Option B) sacrifices real-time performance, which is critical for this use case, making it unsuitable. A CDN (Option C) is designed for static content delivery, not dynamic IoT data streams, and wouldn't address the core issue of real-time ingestion. Upgrading IoT hardware (Option D) might improve local processing but doesn't solve network-related delays or data loss between devices and the AI system. A robust network infrastructure is the most effective solution here.
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