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Title: NVIDIA NCA-GENL Valid Exam Tips - NCA-GENL Valid Test Answers [Print This Page]

Author: nickwar900    Time: 20 hour before
Title: NVIDIA NCA-GENL Valid Exam Tips - NCA-GENL Valid Test Answers
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NVIDIA NCA-GENL Exam Syllabus Topics:
TopicDetails
Topic 1
  • Software Development: This section of the exam measures the skills of Machine Learning Developers and covers writing efficient, modular, and scalable code for AI applications. It includes software engineering principles, version control, testing, and documentation practices relevant to LLM-based development.
Topic 2
  • Fundamentals of Machine Learning and Neural Networks: This section of the exam measures the skills of AI Researchers and covers the foundational principles behind machine learning and neural networks, focusing on how these concepts underpin the development of large language models (LLMs). It ensures the learner understands the basic structure and learning mechanisms involved in training generative AI systems.
Topic 3
  • Data Analysis and Visualization: This section of the exam measures the skills of Data Scientists and covers interpreting, cleaning, and presenting data through visual storytelling. It emphasizes how to use visualization to extract insights and evaluate model behavior, performance, or training data patterns.
Topic 4
  • Experimentation: This section of the exam measures the skills of ML Engineers and covers how to conduct structured experiments with LLMs. It involves setting up test cases, tracking performance metrics, and making informed decisions based on experimental outcomes.:
Topic 5
  • This section of the exam measures skills of AI Product Developers and covers how to strategically plan experiments that validate hypotheses, compare model variations, or test model responses. It focuses on structure, controls, and variables in experimentation.
Topic 6
  • Data Preprocessing and Feature Engineering: This section of the exam measures the skills of Data Engineers and covers preparing raw data into usable formats for model training or fine-tuning. It includes cleaning, normalizing, tokenizing, and feature extraction methods essential to building robust LLM pipelines.

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NVIDIA Generative AI LLMs Sample Questions (Q25-Q30):NEW QUESTION # 25
Which calculation is most commonly used to measure the semantic closeness of two text passages?
Answer: A
Explanation:
Cosine similarity is the most commonly used metric to measure the semantic closeness of two text passages in NLP. It calculates the cosine of the angle between two vectors (e.g., word embeddings or sentence embeddings) in a high-dimensional space, focusing on the direction rather than magnitude, which makes it robust for comparing semantic similarity. NVIDIA's documentation on NLP tasks, particularly in NeMo and embedding models, highlights cosine similarity as the standard metric for tasks like semantic search or text similarity, often using embeddings from models like BERT or Sentence-BERT. Option A (Hamming distance) is for binary data, not text embeddings. Option B (Jaccard similarity) is for set-based comparisons, not semantic content. Option D (Euclidean distance) is less common for text due to its sensitivity to vector magnitude.
References:
NVIDIA NeMo Documentation: https://docs.nvidia.com/deeplear ... able/nlp/intro.html

NEW QUESTION # 26
Which of the following is a feature of the NVIDIA Triton Inference Server?
Answer: A
Explanation:
The NVIDIA Triton Inference Server is designed to optimize and deploy machine learning models for inference, and one of its key features is dynamic batching, as noted in NVIDIA's Generative AI and LLMs course. Dynamic batching automatically groups inference requests into batches to maximize GPU utilization, reducing latency and improving throughput for real-time applications. Option A, model quantization, is incorrect, as it is typically handled by frameworks like TensorRT, not Triton. Option C, gradient clipping, is a training technique, not an inference feature. Option D, model pruning, is a model optimization method, not a Triton feature. The course states: "NVIDIA Triton Inference Server supports dynamic batching, which optimizes inference by grouping requests to maximize GPU efficiency and throughput." References: NVIDIA Building Transformer-Based Natural Language Processing Applications course; NVIDIA Introduction to Transformer-Based Natural Language Processing.

NEW QUESTION # 27
What is Retrieval Augmented Generation (RAG)?
Answer: C
Explanation:
Retrieval-Augmented Generation (RAG) is a methodology that enhances the performance of large language models (LLMs) by integrating an information retrieval component with a generative model. As described in the seminal paper by Lewis et al. (2020), RAG retrieves relevant documents from an external knowledge base (e.g., using dense vector representations) and uses them to inform the generative process, enabling more accurate and contextually relevant responses. NVIDIA's documentation on generative AI workflows, particularly in the context of NeMo and Triton Inference Server, highlights RAG as a technique to improve LLM outputs by grounding them in external data, especially for tasks requiring factual accuracy or domain- specific knowledge. Option A is incorrect because RAG does not involve retraining the model but rather augments it with retrieved data. Option C is too vague and does not capture the retrieval aspect, while Option D refers to fine-tuning, which is a separate process.
References:
Lewis, P., et al. (2020). "Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks." NVIDIA NeMo Documentation: https://docs.nvidia.com/deeplear ... /docs/en/stable/nlp
/intro.html

NEW QUESTION # 28
How does A/B testing contribute to the optimization of deep learning models' performance and effectiveness in real-world applications? (Pick the 2 correct responses)
Answer: D,E
Explanation:
A/B testing is a controlled experimentation technique used to compare two versions of a system to determine which performs better. In the context of deep learning, NVIDIA's documentation on model optimization and deployment (e.g., Triton Inference Server) highlights its use in evaluating model performance:
* Option A: A/B testing validates changes (e.g., model updates or new features) by statistically comparing outcomes (e.g., accuracy or user engagement), enabling data-driven optimization decisions.
References:
NVIDIA Triton Inference Server Documentation: https://docs.nvidia.com/deeplear ... ide/docs/index.html

NEW QUESTION # 29
In the evaluation of Natural Language Processing (NLP) systems, what do 'validity' and 'reliability' imply regarding the selection of evaluation metrics?
Answer: A
Explanation:
In evaluating NLP systems, as discussed in NVIDIA's Generative AI and LLMs course, validity and reliability are critical for selecting evaluation metrics. Validity ensures that a metric accurately measures the intended property (e.g., BLEU for translation quality or F1-score for classification performance), reflecting the system's true capability. Reliability ensures that the metric produces consistent results across repeated measurements under similar conditions, indicating stability and robustness. Together, these ensure trustworthy evaluations. Option A is incorrect, as validity is not about predicting trends, and reliability is not about data source integration. Option C is wrong, as validity and reliability are not primarily about computational cost or platform applicability. Option D is inaccurate, as validity and reliability do not focus on computation speed or high-volume processing. The course notes: "Validity ensures NLP evaluation metrics accurately measure the intended property, while reliability ensures consistent results across repeated evaluations, critical for robust system assessment." References: NVIDIA Building Transformer-Based Natural Language Processing Applications course; NVIDIA Introduction to Transformer-Based Natural Language Processing.

NEW QUESTION # 30
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