NEW 2025 Certification Sample Questions NCA-AIIO Dumps & Practice Exam
NCA-AIIO Deluxe Study Guide with Online Test Engine
NEW QUESTION # 23
Your AI data center is running multiple high-power NVIDIA GPUs, and you've noticed an increase in operational costs related to power consumption and cooling. Which of the following strategies would be most effective in optimizing power and cooling efficiency without compromising GPU performance?
- A. Reduce GPU utilization by lowering workload intensity.
- B. Switch to air-cooled GPUs instead of liquid-cooled GPUs.
- C. Implement AI-based dynamic thermal management systems.
- D. Increase the cooling fan speeds of all servers.
Answer: C
Explanation:
Implementing AI-based dynamic thermal management systems is the most effective strategy for optimizing power and cooling efficiency in an AI data center with NVIDIA GPUs without sacrificing performance.
NVIDIA's DGX systems and DCGM support advanced power management features that use AI to dynamically adjust power usage and cooling based on workload demands, GPU temperature, and environmental conditions. This ensures optimal efficiency while maintaining peak performance. Option B (reducing utilization) compromises performance, defeating the purpose of high-power GPUs. Option C (switching to air-cooling) is less efficient than liquid-cooling for high-density GPU setups, per NVIDIA's data center designs. Option D (increasing fan speeds) raises power consumption without addressing root inefficiencies. NVIDIA's documentation on energy-efficient computing highlights dynamic thermal management as a best practice.
NEW QUESTION # 24
What is a significant benefit of using containers in an AI development environment?
- A. They ensure that AI applications run consistently across different computing environments.
- B. They increase the base accuracy of AI models by optimizing their algorithms.
- C. They directly increase the processing speed of GPUs used in AI computations.
- D. They can automatically generate AI datasets for machine learning model training.
Answer: A
Explanation:
Containers (e.g., Docker) encapsulate AI applications with their dependencies, ensuring consistent execution across diverse environments-from development laptops to production clusters-without manual reconfiguration. They don't inherently improve model accuracy, generate datasets, or boost GPU speed, focusing instead on portability and reproducibility.(Note: The document incorrectly lists A; B is correct per NVIDIA standards.) (Reference: NVIDIA AI Infrastructure and Operations Study Guide, Section on Containers in AI Development)
NEW QUESTION # 25
You are working on a project that involves both real-time AI inference and data preprocessing tasks. The AI models require high throughput and low latency, while the data preprocessing involves complex logic and diverse data types. Given the need to balance these tasks, which computing architecture should you prioritize for each task?
- A. Deploy AI inference on CPUs and data preprocessing on FPGAs
- B. Use CPUs for both AI inference and data preprocessing
- C. Use GPUs for both AI inference and data preprocessing
- D. Prioritize GPUs for AI inference and CPUs for data preprocessing
Answer: D
Explanation:
Prioritizing GPUs for AI inference and CPUs for data preprocessing is the best architecture to balance these tasks. GPUs excel at parallel computation, making them ideal for high-throughput, low-latency inference using NVIDIA tools like TensorRT or Triton. CPUs, with fewer but more powerful cores, handle complex, sequential preprocessing tasks (e.g., data cleaning, branching logic) efficiently, as noted in NVIDIA's "AI Infrastructure for Enterprise" and "GPU Architecture Overview." This hybrid approach leverages each processor's strengths, optimizing overall performance.
Using GPUs for both (A) underutilizes CPUs for preprocessing. CPUs for both (B) sacrifices inference performance. CPUs for inference and FPGAs for preprocessing (D) misaligns with NVIDIA GPU strengths and adds complexity. NVIDIA recommends this CPU-GPU division.
NEW QUESTION # 26
Which component of the NVIDIA software stack is primarily responsible for optimizing deep learning models for inference in production environments?
- A. NVIDIA Triton Inference Server
- B. NVIDIA DIGITS
- C. NVIDIA TensorRT
- D. NVIDIA CUDA
Answer: C
Explanation:
NVIDIA TensorRT is primarily responsible for optimizing deep learning models for inference, enhancing speed and efficiency on GPUs in production. Option A (DIGITS) is for training. Option B (Triton) serves models, leveraging TensorRT. Option D (CUDA) is a foundational platform. NVIDIA's TensorRT docs confirm its inference optimization role.
NEW QUESTION # 27
A healthcare company is training a large convolutional neural network (CNN) for medical image analysis.
The dataset is enormous, and training is taking longer than expected. The team needs to speed up the training process by distributing the workload across multiple GPUs and nodes. Which of the following NVIDIA solutions will help them achieve optimal performance?
- A. NVIDIA TensorRT
- B. NVIDIA cuDNN
- C. NVIDIA NCCL and NVIDIA DALI
- D. NVIDIA DeepStream SDK
Answer: C
Explanation:
Training a large CNN on an enormous dataset across multiple GPUs and nodes requires efficient communication and data handling. NVIDIA NCCL (NVIDIA Collective Communications Library) optimizes inter-GPU and inter-node communication, enabling scalable data and model parallelism, while NVIDIA DALI (Data Loading Library) accelerates data loading and preprocessing on GPUs, reducing I/O bottlenecks.
Together, they speed up training by ensuring GPUs are fully utilized, a strategy central to NVIDIA's DGX systems and multi-node AI workloads.
cuDNN (Option A) accelerates CNN operations but focuses on single-GPU performance, not multi-node distribution. DeepStream SDK (Option C) is tailored for real-time video analytics, not training. TensorRT (Option D) optimizes inference, not training. NCCL and DALI are the optimal NVIDIA solutions for this distributed training scenario.
NEW QUESTION # 28
You are helping a senior engineer analyze the results of a hyperparameter tuning process for a machine learning model. The results include a large number of trials, each with different hyperparameters and corresponding performance metrics. The engineer asks you to create visualizations that will help in understanding how different hyperparameters impact model performance. Which type of visualization would be most appropriate for identifying the relationship between hyperparameters and model performance?
- A. Pie chart showing the proportion of successful trials
- B. Scatter plot of hyperparameter values against performance metrics
- C. Line chart showing performance metrics over trials
- D. Parallel coordinates plot showing hyperparameters and performance metrics
Answer: D
Explanation:
A parallel coordinates plot is ideal for visualizing relationships between multiple hyperparameters (e.g., learning rate, batch size) and performance metrics (e.g., accuracy) across many trials. Each axis represents a variable, and lines connect values for each trial, revealing patterns-like how a high learning rate might correlate with lower accuracy-across high-dimensional data. NVIDIA's RAPIDS library supports such visualizations on GPUs, enhancing analysis speed for large datasets.
A scatter plot (Option A) works for two variables but struggles with multiple hyperparameters. A pie chart (Option C) shows proportions, not relationships. A line chart (Option D) tracks trends over time or trials but doesn't link hyperparameters to metrics effectively. Parallel coordinates are NVIDIA-aligned for multi- variable AI analysis.
NEW QUESTION # 29
What enables moving data between GPU memory and local or remote storage without using the CPU?
- A. GPUDirect P2P
- B. InfiniBand
- C. NVLink
- D. GPUDirect Storage
Answer: D
Explanation:
NVIDIA GPUDirect Storage enables direct data paths between GPU memory and local or remote storage (e.
g., NVMe over fabrics), bypassing the CPU and host memory. This maximizes throughput and minimizes latency in AI data pipelines. NVLink connects GPUs, GPUDirect P2P facilitates GPU-to-GPU transfers, and InfiniBand is a network fabric, but only GPUDirect Storage targets storage access.
(Reference: NVIDIA GPUDirect Storage Documentation, Overview Section)
NEW QUESTION # 30
A financial institution is implementing an AI-driven fraud detection system that needs to process millions of transactions daily in real-time. The system must rapidly identify suspicious activity and trigger alerts, while also continuously learning from new data to improve accuracy. Which architecture is most appropriate for this scenario?
- A. Hybrid setup with multi-GPU servers for training and edge devices for inference
- B. CPU-based servers with cloud storage for centralized processing
- C. Edge-only deployment with ARM processors for both training and inference
- D. Single GPU server with local SSD storage for both training and inference
Answer: A
Explanation:
A hybrid setup with multi-GPU servers (e.g., NVIDIA DGX) for training and edge devices (e.g., NVIDIA Jetson) for inference is most appropriate. Multi-GPU servers handle continuous training on large datasets with high compute power, while edge devices enable low-latency inference for real-time fraud detection, balancing scalability and speed. Option A (single GPU) lacks scalability. Option B (edge-only ARM) can't handle training demands. Option D (CPU-based) sacrifices GPU acceleration. NVIDIA's fraud detection architectures endorse this hybrid model.
NEW QUESTION # 31
When extracting insights from large datasets using data mining and data visualization techniques, which of the following practices is most critical to ensure accurate and actionable results?
- A. Using complex algorithms with the highest computational cost.
- B. Ensuring the data is cleaned and pre-processed appropriately.
- C. Maximizing the size of the dataset used for training models.
- D. Visualizing all possible data points in a single chart.
Answer: B
Explanation:
Accurate and actionable insights from data mining and visualization depend on high-quality data. Ensuring data is cleaned and pre-processed appropriately-removing noise, handling missing values, and normalizing features-prevents misleading results and ensures reliability. NVIDIA's RAPIDS library accelerates these steps on GPUs, enabling efficient preprocessing of large datasets for AI workflows, a critical practice in NVIDIA's data science ecosystem (e.g., DGX and NGC integrations).
Complex algorithms (Option A) may enhance analysis but are secondary to data quality; high cost doesn't guarantee accuracy. Visualizing all data points (Option C) can overwhelm charts, obscuring insights, and is less critical than preprocessing. Maximizing dataset size (Option D) can improve models but risks introducing noise if not cleaned, reducing actionability. NVIDIA's focus on data preparation in AI pipelines underscores Option B's importance.
NEW QUESTION # 32
An AI research team is working on a large-scale natural language processing (NLP) model that requires both data preprocessing and training across multiple GPUs. They need to ensure that the GPUs are used efficiently to minimize training time. Which combination of NVIDIA technologies should they use?
- A. NVIDIA cuDNN and NVIDIA NGC Catalog
- B. NVIDIA TensorRT and NVIDIA DGX OS
- C. NVIDIA DALI (Data Loading Library) and NVIDIA NCCL
- D. NVIDIA DeepStream SDK and NVIDIA CUDA Toolkit
Answer: C
Explanation:
NVIDIA DALI (Data Loading Library) and NVIDIA NCCL (Collective Communications Library) are the best combination for efficient GPU use in NLP model training. DALI accelerates data preprocessing (e.g., tokenization) on GPUs, reducing CPU bottlenecks, while NCCL optimizes inter-GPU communication for distributed training, minimizing latency and maximizing utilization. Option A (TensorRT) focuses on inference, not training. Option B (DeepStream) targets video analytics. Option D (cuDNN, NGC) supports neural ops and model access but lacks preprocessing/communication focus. NVIDIA's NLP workflows recommend DALI and NCCL for efficiency.
NEW QUESTION # 33
An IT professional is considering whether to implement an on-prem or cloud infrastructure. Which of the following is a key advantage of on-prem infrastructure?
- A. Lower upfront costs and capital expenditure.
- B. Ensure data security and sovereignty.
- C. Scalability and flexibility.
- D. Easy remote management.
Answer: B
Explanation:
On-premises infrastructure offers a key advantage in ensuring data security and sovereignty, as organizations retain direct control over hardware and data, facilitating compliance with strict regulations (e.g., GDPR).
Cloud solutions excel in scalability and lower upfront costs, but on-prem provides unmatched authority over sensitive data, outweighing remote management ease in security-critical scenarios.
(Reference: NVIDIA AI Infrastructure and Operations Study Guide, Section on On-Prem vs. Cloud Infrastructure)
NEW QUESTION # 34
You are working on an autonomous vehicle project that requires real-time processing of high-definition video feeds to detect and respond to objects in the environment. Which NVIDIA solution is best suited for deploying the AI models needed for this task in an embedded system?
- A. NVIDIA BlueField.
- B. NVIDIA Clara.
- C. NVIDIA Jetson AGX Xavier.
- D. NVIDIA Mellanox.
Answer: C
Explanation:
For an autonomous vehicle project requiring real-time processing of high-definition video feeds in an embedded system, the NVIDIA Jetson AGX Xavier is the optimal solution. Jetson AGX Xavier is a compact, power-efficient platform designed for edge AI, delivering up to 32 TOPS of AI performance for tasks like object detection and sensor fusion. It supports NVIDIA's CUDA, TensorRT, and DeepStream SDKs, enabling efficient deployment of deep learning models in real-time applications like autonomous driving.
Option A (NVIDIA Mellanox) focuses on high-speed networking, not embedded AI. Option B (NVIDIA Clara) targets healthcare applications, such as medical imaging. Option D (NVIDIA BlueField) is a DPU for data center networking and storage, not embedded systems. NVIDIA's official documentation on Jetson platforms confirms its suitability for automotive edge computing.
NEW QUESTION # 35
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.
Answer: C
Explanation:
A GPU's architecture is designed for massive parallelism, featuring thousands of lightweight cores that execute simple instructions across vast data elements simultaneously-ideal for tasks like AI training. In contrast, a CPU has fewer, complex cores optimized for sequential execution and branching logic. GPUs don' t function as PCIe controllers (a hardware role), nor are they single-core designs, making the parallel execution focus the key differentiator.
(Reference: NVIDIA GPU Architecture Whitepaper, Section on GPU Design Principles)
NEW QUESTION # 36
When deploying AI workloads on a cloud platform using NVIDIA GPUs, which of the following is the most critical consideration to ensure cost efficiency without compromising performance?
- A. Choosing a cloud provider that offers the lowest per-hour GPU cost
- B. Running all workloads on a single, high-performance GPU instance to minimize costs
- C. Using spot instances where applicable for non-critical workloads
- D. Selecting the instance with the maximum GPU memory available
Answer: C
Explanation:
Using spot instances where applicable for non-critical workloads is the most critical consideration for cost efficiency without compromising performance. Spot instances, offered by cloud providerswith NVIDIA GPUs (e.g., DGX Cloud), provide significant cost savings for interruptible tasks like batch training, while reserved instances ensure performance for critical workloads. Option A (single instance) limits scalability.
Option C (lowest cost) risks performance trade-offs. Option D (max memory) increases costs unnecessarily.
NVIDIA's cloud deployment guides endorse spot instance strategies.
NEW QUESTION # 37
In your AI data center, you are responsible for deploying and managing multiple machine learning models in production. To streamline this process, you decide to implement MLOps practices with a focus on job scheduling and orchestration. Which of the following strategies is most aligned with achieving reliable and efficient model deployment?
- A. Manually trigger model deployments based on performance metrics
- B. Use a CI/CD pipeline to automate model training, validation, and deployment
- C. Deploy models directly to production without staging environments
- D. Schedule all jobs to run at the same time to maximize GPU utilization
Answer: B
Explanation:
Using a CI/CD pipeline to automate model training, validation, and deployment (A) is the most aligned with reliable and efficient MLOps practices. Continuous Integration/Continuous Deployment (CI/CD) automates the ML lifecycle-building, testing, and deploying models-ensuring consistency, reducing errors, and enabling rapid iteration. Tools like Kubeflow or Jenkins, integrated with NVIDIA GPU Operator, schedule jobs efficiently on GPU clusters, validating models in staging environments before production rollout.
* Running all jobs simultaneously(B) risks resource contention and instability, not efficiency.
* Manual triggering(C) is slow and error-prone, counter to MLOps automation goals.
* Direct deployment without staging(D) skips validation, risking unreliable models in production.
NVIDIA supports CI/CD for AI deployment in its MLOps guidelines (A).
NEW QUESTION # 38
You are tasked with deploying a real-time recommendation system for an e-commerce platform using NVIDIA AI infrastructure. The system needs to process millions of user interactions per second to provide personalized recommendations instantly. Which NVIDIA solution is best suited to handle this workload efficiently?
- A. NVIDIA TensorRT
- B. NVIDIA DGX Station
- C. NVIDIA Triton Inference Server
- D. NVIDIA Clara
Answer: C
Explanation:
NVIDIA Triton Inference Server is the best-suited solution for deploying a real-time recommendation system processing millions of user interactions per second. Triton is designed for high-throughput, low-latency inference in production, supporting multiple models and frameworks (e.g., TensorFlow, PyTorch) on NVIDIA GPUs. It offers dynamic batching, model versioning, and integration with Kubernetes, enabling scalable, real-time personalization, as detailed in NVIDIA's "Triton Inference Server Documentation." This aligns with e-commerce needs for instant recommendations under heavy load.
NVIDIA Clara (A) is healthcare-focused, not suited for e-commerce. DGX Station (B) is a workstation for development, not production inference. TensorRT (D) optimizes inference but lacks Triton's deployment and scalability features. Triton is NVIDIA's go-to for such workloads.
NEW QUESTION # 39
You are managing an AI cluster where multiple jobs with varying resource demands are scheduled. Some jobs require exclusive GPU access, while others can share GPUs. Which of the following job scheduling strategies would best optimize GPU resource utilization across the cluster?
- A. Increase the default pod resource requests in Kubernetes
- B. Schedule all jobs with dedicated GPU resources
- C. Use FIFO (First In, First Out) Scheduling
- D. Enable GPU sharing and use NVIDIA GPU Operator with Kubernetes
Answer: D
Explanation:
Enabling GPU sharing and using NVIDIA GPU Operator with Kubernetes (C) optimizes resourceutilization by allowing flexible allocation of GPUs based on job requirements. The GPU Operator supports Multi- Instance GPU (MIG) mode on NVIDIA GPUs (e.g., A100), enabling jobs to share a single GPU when exclusive access isn't needed, while dedicating full GPUs to high-demand tasks. This dynamic scheduling, integrated with Kubernetes, balances utilization across the cluster efficiently.
* Dedicated GPU resources for all jobs(A) wastes capacity for shareable tasks, reducing efficiency.
* FIFO Scheduling(B) ignores resource demands, leading to suboptimal allocation.
* Increasing pod resource requests(D) may over-allocate resources, not addressing sharing or optimization.
NVIDIA's GPU Operator is designed for such mixed workloads (C).
NEW QUESTION # 40
You are managing a high-performance AI cluster where multiple deep learning jobs are scheduled to run concurrently. To maximize resource efficiency, which of the following strategies should youuse to allocate GPU resources across the cluster?
- A. Assign jobs to GPUs based on their geographic proximity to reduce data transfer times.
- B. Allocate GPUs to jobs based on their compute intensity, reserving the most powerful GPUs for the most demanding tasks.
- C. Use a priority queue to assign GPUs to jobs based on their deadline, ensuring the most time-sensitive jobs complete first.
- D. Allocate all GPUs to the largest job to ensure its rapid completion, then proceed with smaller jobs.
Answer: B
Explanation:
Maximizing resource efficiency in a high-performance AI cluster requires matching GPU capabilities to job requirements. Allocating GPUs based on compute intensity ensures that resource-intensive tasks (e.g., large models or datasets) run on high-performance GPUs (e.g., NVIDIA A100 or H100), while lighter tasks use less powerful ones (e.g., V100). NVIDIA's Multi-Instance GPU (MIG) and GPU Operator in Kubernetes support this strategy by allowing dynamic partitioning and allocation, optimizing utilization and throughput across the cluster.
A priority queue (Option A) focuses on deadlines but may underutilize GPUs if low-priority jobs are resource- heavy. Allocating all GPUs to one job (Option B) wastes resources when smaller jobs could run concurrently.
Geographic proximity (Option D) reduces latency in distributed setups but doesn't address compute efficiency within a cluster. NVIDIA's emphasis on workload-aware scheduling in DGX and cloud environments supports Option C as the best approach.
NEW QUESTION # 41
Your AI team is running a distributed deep learning training job on an NVIDIA DGX A100 clusterusing multiple nodes. The training process is slowing down significantly as the model size increases. Which of the following strategies would be most effective in optimizing the training performance?
- A. Increase Batch Size
- B. Use Data Parallelism Instead of Model Parallelism
- C. Decrease the Number of Nodes
- D. Enable Mixed Precision Training
Answer: D
Explanation:
Enabling Mixed Precision Training is the most effective strategy to optimize training performance on an NVIDIA DGX A100 cluster as model size increases. Mixed precision uses lower-precision data types (e.g., FP16) alongside FP32, reducing memory usage and leveraging Tensor Cores on A100 GPUs for faster computation without significant accuracy loss. This approach, detailed in NVIDIA's "Mixed Precision Training Guide," accelerates training by allowing larger models to fit in GPU memory and speeding up matrix operations, addressing slowdowns in distributed setups.
Data parallelism (B) distributes data but may not help if memory constraints slow computation. Decreasing nodes (C) reduces parallelism, worsening performance. Increasing batch size (D) can strain memory further, exacerbating slowdowns. NVIDIA's DGX A100 documentation highlights mixed precision as a key optimization for large models.
NEW QUESTION # 42
Which of the following statements best differentiates AI, machine learning, and deep learning?
- A. AI is the broad concept of machines being able to perform tasks that require human intelligence, machine learning is a subset of AI, and deep learning is a subset of machine learning.
- B. Machine learning is synonymous with AI, and deep learning is just an alternative term for neural networks.
- C. Deep learning and AI are the same, and machine learning is a subset of deep learning.
- D. Machine learning is a type of AI that specifically uses deep learning algorithms to make predictions.
Answer: A
Explanation:
NVIDIA's educational resources, such as those from the NVIDIA Deep Learning Institute (DLI), clarify the hierarchical relationship between AI, machine learning (ML), and deep learning (DL). AI is the overarching field encompassing any technique enabling machines to mimic human intelligence (e.g., reasoning, perception). Machine learning is a subset of AI that involves algorithms learning from data to make predictions or decisions without explicit programming. Deep learning, a further subset of ML, uses multi- layered neural networks to handle complex tasks like image recognition or natural language processing.
Option A is incorrect because ML includes more than just DL (e.g., decision trees, SVMs). Option B is wrong as DL and AI are distinct, and ML is not a subset of DL. Option D oversimplifies by equating ML with AI and mischaracterizes DL. NVIDIA's documentation aligns with Option C, providing a clear, industry- standard definition.
NEW QUESTION # 43
Which of the following features of GPUs is most crucial for accelerating AI workloads, specifically in the context of deep learning?
- A. Large amount of onboard cache memory
- B. Lower power consumption compared to CPUs
- C. Ability to execute parallel operations across thousands of cores
- D. High clock speed
Answer: C
Explanation:
The ability to execute parallel operations across thousands of cores (B) is the most crucial feature of GPUs for accelerating AI workloads, particularly deep learning. Deep learning involves massive matrix operations (e.g., convolutions, matrix multiplications) that are inherently parallelizable. NVIDIA GPUs, such as the A100 Tensor Core GPU, feature thousands of CUDA cores and Tensor Cores designed to handle these operations simultaneously, providing orders-of-magnitude speedups over CPUs. This parallelism is the cornerstone of GPU acceleration in frameworks like TensorFlow and PyTorch.
* Large onboard cache memory(A) aids performance but is secondary to parallelism, as deep learning relies more on compute than cache size.
* Lower power consumption(C) is not a GPU advantage over CPUs (GPUs often consume more power) and isn't the key to acceleration.
* High clock speed(D) benefits CPUs more than GPUs, where core count and parallelism dominate.
NVIDIA's documentation highlights parallelism as the defining feature for AI acceleration (B).
NEW QUESTION # 44
Your team is deploying an AI model that involves a real-time recommendation system for a high-traffic e- commerce platform. The model must analyze user behavior and suggest products instantly as the user interacts with the platform. Which type of AI workload best describes this use case?
- A. Offline training
- B. Batch processing
- C. Streaming analytics
- D. Reinforcement learning
Answer: C
Explanation:
Streaming analytics best describes the workload for a real-time recommendation system on a high-traffic e- commerce platform. This workload involves continuous processing of incoming data (user behavior) to deliver instant product suggestions, requiring low-latency inference on NVIDIA GPUs, often with tools like NVIDIA TensorRT or Triton Inference Server. Option A (batch processing) handles data in fixed chunks, unsuitable for real-time needs. Option B (reinforcement learning) focuses on decision-making through trial and error, not immediate recommendations. Option D (offline training) is for model development, not deployment. NVIDIA's AI infrastructure documentation emphasizes streaming analytics for real-time applications like e-commerce personalization.
NEW QUESTION # 45
You have deployed an AI training job on a GPU cluster, but the training time has not decreased as expected after adding more GPUs. Upon further investigation, you observe that the GPU utilization is low, and the CPU utilization is very high. What is the most likely cause of this issue?
- A. Incorrect software version installed on the GPUs.
- B. The AI model is not compatible with multi-GPU training.
- C. The data preprocessing is being bottlenecked by the CPU.
- D. The GPUs are not properly connected in the cluster.
Answer: C
Explanation:
The data preprocessing being bottlenecked by the CPU is the most likely cause. High CPU utilization and low GPU utilization suggest the GPUs are idle, waiting for data, a common issue when preprocessing (e.g., data loading) is CPU-bound. NVIDIA recommends GPU-accelerated preprocessing (e.g., DALI) to mitigate this.
Option A (model incompatibility) would show errors, not low utilization. Option B (connection issues) would disrupt communication, not CPU load. Option C (software version) is less likely without specific errors.
NVIDIA's performance guides highlight preprocessing bottlenecks.
NEW QUESTION # 46
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