Free NCA-GENM Questions for NVIDIA Generative AI Multimodal NCA-GENM Exam as PDF & Practice Test Engine

You're training a multimodal model to generate 3D models from text descriptions. The models are evaluated using Intersection over Union (IOU) between the generated and ground truth 3D models. During evaluation, you observe perfect IOU scores on some samples, but visual inspection reveals significant discrepancies. What is the MOST likely cause for this, and what can be done to correct the process?

You're fine-tuning a pre-trained multimodal model for a specific downstream task. You notice that while the model's performance on the training data is excellent, it performs poorly on unseen dat a. What regularization technique, beyond standard weight decay, is MOST likely to improve the model's generalization ability in this scenario, and what is its purpose?

You are tasked with building a system that can generate captions for images. You want to use a transformer-based model. During inference, you notice that the model tends to generate repetitive captions. Which of the following decoding strategies could you use to mitigate this issue?

You are fine-tuning a pre-trained large language model (LLM) for a specific text generation task using LoRA (Low-Rank Adaptation).
Which of the following statements accurately describes the benefits and limitations of using LoRA?

You are training a multimodal model to predict stock prices using news articles (text) and historical price charts (images). You notice the model is overfitting to the historical price charts and largely ignoring the news articles. What is a potential solution to mitigate this overfitting?

Consider the following Python code snippet using Triton Inference Server's Python client. The code intends to send a request to a model that expects two input tensors: 'input_image' (shape: [1, 3, 224, 224], datatype: FP32) and 'input_text' (shape: [1 ,], datatype: BYTES). Identify potential issues in this code that could prevent successful inference.

You are working on a Generative A1 project that involves analyzing text dat a. You've noticed that certain words are appearing much more frequently than others, potentially skewing your results. Which of the following techniques would be MOST effective in addressing this issue?

You have trained a multimodal model for visual question answering (VQA). During inference, the model often generates incorrect answers even though it seems to understand the question and the image content. Which of the following strategies could help improve the accuracy of the model's predictions? (Select all that apply)

You're building a text generation model using a Transformer architecture. You observe that the generated text often gets stuck in repetitive loops, producing the same phrase over and over. Which of the following strategies is MOST likely to mitigate this issue?

You're developing a text-to-image generation system using a pre-trained CLIP model and a diffusion model. You notice that while the generated images match the overall theme of the text prompt, they often fail to accurately represent specific objects mentioned in the prompt. What are the two MOST effective strategies to improve object fidelity in this scenario?