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NVIDIA-Certified Associate AI Infrastructure and Operations Sample Questions (Q191-Q196):

NEW QUESTION # 191
A financial institution is deploying two different machine learning models to predict credit defaults. The models are evaluated using Mean Squared Error (MSE) as the primary metric. Model A has an MSE of 0.015, while Model B has an MSE of 0.027. Additionally, the institution is considering the complexity and interpretability of the models. Given this information, which model should be preferred and why?

A. Model A should be preferred because it has a more complex architecture, leading to better long-term performance.
B. Model A should be preferred because it is more interpretable than Model B.
C. Model A should be preferred because it has a lower MSE, indicating better performance.
D. Model B should be preferred because it has a higher MSE, indicating it is less likely to overfit.

Answer: C

Explanation:
Model A should be preferred because its lower MSE (0.015 vs. 0.027) indicates better performance in predicting credit defaults, as MSE measures prediction error (lower is better). Complexity and interpretability are secondary without specific data, but NVIDIA's ML deployment guidelines prioritize performance metrics like MSE for financial use cases. Option A assumes complexity improves performance, unverified here.
Option B misinterprets higher MSE as beneficial. Option C lacks interpretability evidence. NVIDIA's focus on accuracy supports Option D.

NEW QUESTION # 192
You are responsible for managing an AI infrastructure where multiple data scientists are simultaneously running large-scale training jobs on a shared GPU cluster. One data scientist reports that their training job is running much slower than expected, despite being allocated sufficient GPU resources. Upon investigation, you notice that the storage I/O on the system is consistently high. What is the most likely cause of the slow performance in the data scientist's training job?

A. Insufficient GPU memory allocation
B. Incorrect CUDA version installed
C. Overcommitted CPU resources
D. Inefficient data loading from storage

Answer: D

Explanation:
Inefficient data loading from storage (B) is the most likely cause of slow performance when storage I/O is consistently high. In AI training, GPUs require a steady stream of data to remain utilized. If storage I/O becomes a bottleneck-due to slow disk reads, poor data pipeline design, or insufficient prefetching-GPUs idle while waiting for data, slowing the training process. This is common in shared clusters where multiple jobs compete for I/O bandwidth. NVIDIA's Data Loading Library (DALI) is recommended to optimize this process by offloading data preparation to GPUs.
* Incorrect CUDA version(A) might cause compatibility issues but wouldn't directly tie to high storage I
/O.
* Overcommitted CPU resources(C) could slow preprocessing, but high storage I/O points to disk bottlenecks, not CPU.
* Insufficient GPU memory(D) would cause crashes or out-of-memory errors, not I/O-related slowdowns.
NVIDIA emphasizes efficient data pipelines for GPU utilization (B).

NEW QUESTION # 193
You are working with a large healthcare dataset containing millions of patient records. Your goal is to identify patterns and extract actionable insights that could improve patient outcomes. The dataset is highly dimensional, with numerous variables, and requires significant processing power to analyze effectively.
Which two techniques are most suitable for extracting meaningful insights from this large, complex dataset?
(Select two)

A. Batch Normalization
B. Data Augmentation
C. K-means Clustering
D. SMOTE (Synthetic Minority Over-sampling Technique)
E. Dimensionality Reduction (e.g., PCA)

Answer: C,E

Explanation:
A large, high-dimensional healthcare dataset requires techniques to uncover patterns and reduce complexity.
K-means Clustering (Option D) groups similar patient records (e.g., by symptoms or outcomes), identifying actionable patterns using NVIDIA RAPIDS cuML for GPU acceleration. Dimensionality Reduction (Option E), like PCA, reduces variables to key components, simplifying analysis while preserving insights, also accelerated by RAPIDS on NVIDIA GPUs (e.g., DGX systems).
SMOTE (Option A) addresses class imbalance, not general pattern extraction. Data Augmentation (Option B) enhances training data, not insight extraction. Batch Normalization (Option C) is a training technique, not an analysis tool. NVIDIA's data science tools prioritize clustering and dimensionality reduction for such tasks.

NEW QUESTION # 194
You are configuring a multi-node AI training environment using NVIDIA GPUs, and your team wants to ensure that the network infrastructure can handle the data transfer between nodes efficiently, especially during distributed training tasks. What is the most critical factor to consider in the network infrastructure to minimize bottlenecks during distributed AI training?

A. Increasing the number of Ethernet ports on each node
B. Using software-defined networking (SDN) to manage traffic
C. Implementing InfiniBand with RDMA support
D. Reducing the number of nodes to simplify the network

Answer: C

Explanation:
Implementing InfiniBand with RDMA support is the most critical factor to minimize bottlenecks in distributed AI training. It provides ultra-low latency and high bandwidth (e.g., 200 Gb/s), optimizing GPU-to- GPU data transfers via NCCL. Option B (more Ethernet ports) improves redundancy, not speed. Option C (fewer nodes) limits scalability. Option D (SDN) aids management, not raw performance. NVIDIA's DGX networking guides recommend InfiniBand.

NEW QUESTION # 195
A financial services company is developing a machine learning model to detect fraudulent transactions in real- time. They need to manage the entire AI lifecycle, from data preprocessing to model deployment and monitoring. Which combination of NVIDIA software components should they integrate to ensure an efficient and scalable AI development and deployment process?

A. NVIDIA Metropolis for data collection, DIGITS for training, and Triton Inference Server for deployment.
B. NVIDIA Clara for model training, TensorRT for data processing, and Jetson for deployment.
C. NVIDIA DeepStream for data processing, CUDA for model training, and NGC for deployment.
D. NVIDIA RAPIDS for data processing, TensorRT for model optimization, and Triton Inference Server for deployment.

Answer: D

Explanation:
The AI lifecycle for real-time fraud detection needs efficient data preprocessing, model optimization, and deployment. NVIDIA RAPIDS accelerates data processing on GPUs, TensorRToptimizes models for low- latency inference, and Triton Inference Server scales deployment across platforms-perfect for financial use cases in NVIDIA DGX or cloud environments.
Clara (Option A) is healthcare-focused, not fraud. DeepStream (Option C) is video-centric, and CUDA isn't a full training solution. Metropolis (Option D) targets smart cities, and DIGITS is outdated. Option B aligns with NVIDIA's lifecycle strategy.

NEW QUESTION # 196
......

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