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Which statement correctly differentiates between AI, machine learning, and deep learning?
A. Machine learning is a type of AI that only uses linear models, while deep learning involves non-linear models exclusively.
B. AI is a broad field encompassing various technologies, including machine learning, which focuses on data-driven models, and deep learning, a subset of machine learning using neural networks.
C. Machine learning is the same as AI, and deep learning is simply a method within AI that doesn't involve machine learning.
D. Deep learning is a broader concept than machine learning, which is a specialized form of AI.
Answer: B
Explanation:
AI is a broad field encompassing technologies for intelligent systems. Machine learning (ML), a subset, uses data-driven models, while deep learning (DL), a subset of ML, employs neural networks for complex tasks.
NVIDIA's ecosystem (e.g., cuDNN for DL, RAPIDS for ML) reflects this hierarchy, supporting all levels.
Option A misaligns ML and DL. Option C reverses the subset order. Option D oversimplifies ML and DL distinctions. Option B matches NVIDIA's conceptual framework.
NEW QUESTION # 18
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 DeepStream SDK
C. NVIDIA NCCL and NVIDIA DALI
D. NVIDIA cuDNN
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 # 19
After deploying an AI model on an NVIDIA T4 GPU in a production environment, you notice that the inference latency is inconsistent, varying significantly during different times of the day. Which of the following actions would most likely resolve the issue?
A. Implement GPU isolation for the inference process.
B. Deploy the model on a CPU instead of a GPU.
C. Upgrade the GPU driver.
D. Increase the number of inference threads.
Answer: A
Explanation:
Implementing GPU isolation for the inference process is the most likely solution to resolve inconsistent latency on an NVIDIA T4 GPU. In multi-tenant or shared environments, other workloads may interfere with the GPU, causing resource contention and latency spikes. NVIDIA's Multi-Instance GPU (MIG) feature, supported on T4 GPUs, allows partitioning to isolate workloads, ensuring consistent performance by dedicating GPU resources to the inference task. Option A (more threads) could increase contention, not reduce it. Option B (driver upgrade) mightimprove compatibility but doesn't address shared resource issues.
Option C (CPU deployment) reduces performance, not latency consistency. NVIDIA's documentation on MIG and inference optimization supports isolation as a best practice.
NEW QUESTION # 20
When virtualizing a GPU-accelerated infrastructure, which of the following is a critical consideration to ensure optimal performance for AI workloads?
A. Maximizing the number of VMs per GPU
B. Ensuring proper NUMA (Non-Uniform Memory Access) alignment
C. Allocating more virtual CPUs (vCPUs) than physical CPUs
D. Using software-based GPU virtualization instead of hardware passthrough
Answer: B
Explanation:
In a virtualized GPU-accelerated infrastructure, such as those using NVIDIA vGPU or GPU passthrough with hypervisors like VMware or KVM, performance hinges on efficient memory access. Ensuring proper NUMA (Non-Uniform Memory Access) alignment is critical because it minimizes latency by aligning GPU, CPU, and memory resources within the same NUMA node. Misalignment can lead to increased memory access times across nodes, degrading AI workload performance, especially for memory-intensive tasks like deep learning training or inference. NVIDIA's documentation for virtualized environments (e.g., NVIDIA GRID, vGPU) emphasizes NUMA awareness to maximize throughput and reduce bottlenecks.
Maximizing VMs per GPU (Option B) risks oversubscription, reducing performance per VM. Over-allocating vCPUs (Option C) causes contention, not optimization, as physical CPU resources are finite. Software-based virtualization (Option D) lacks the direct hardware access of passthrough, lowering efficiency for AI workloads. NUMA alignment is a cornerstone of NVIDIA's virtualization best practices.
NEW QUESTION # 21
You are responsible for scaling an AI infrastructure that processes real-time data using multiple NVIDIA GPUs. During peak usage, you notice significant delays in data processing times, even though the GPU utilization is below 80%. What is the most likely cause of this bottleneck?
A. Insufficient memory bandwidth on the GPUs
B. Inefficient data transfer between nodes in the cluster
C. High CPU usage causing bottlenecks in data preprocessing
D. Overprovisioning of GPU resources, leading to idle times
Answer: B
Explanation:
Inefficient data transfer between nodes in the cluster (D) is the most likely cause of delays when GPU utilization is below 80%. In a multi-GPU setup processing real-time data, bottlenecks often arise from slow inter-node communication rather than GPU compute capacity. If data cannot move quickly between nodes (e.
g., due to suboptimal networking like low-bandwidth Ethernet instead of InfiniBand or NVLink), GPUs wait idle, causing delays despite low utilization.
* High CPU usage(A) could bottleneck preprocessing, but GPU utilization would likely be even lower if CPUs were the sole issue.
* Overprovisioning(B) would result in idle GPUs, but not necessarily delays unless misconfigured.
* Insufficient memory bandwidth(C) would typically push GPU utilization higher, not keep it below
80%.
NVIDIA recommends high-speed interconnects (e.g., NVLink, InfiniBand) for efficient data transfer in distributed AI setups (D).
NEW QUESTION # 22
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