Exam NCA-GENL Topic 4 Question 48 Discussion

Actual exam question for NVIDIA's NCA-GENL exam
Question #: 48
Topic #: 4
Which of the following best describes the purpose of attention mechanisms in transformer models?

Suggested Answer: A Vote an answer

Attention mechanisms in transformer models, as introduced in "Attention is All You Need" (Vaswani et al.,
2017), allow the model to focus on relevant parts of the input sequence by assigning higher weights to important tokens during processing. NVIDIA's NeMo documentation explains that self-attention enables transformers to capture long-range dependencies and contextual relationships, making them effective for tasks like language modeling and translation. Option B is incorrect, as attention does not compress sequences but processes them fully. Option C is false, as attention is not about generating noise. Option D refers to embeddings, not attention.
References:
Vaswani, A., et al. (2017). "Attention is All You Need."
NVIDIA NeMo Documentation:https://docs.nvidia.com/deeplearning/nemo/user-guide/docs/en/stable/nlp
/intro.html

by Harriet at Jun 23, 2026, 08:52 AM

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