NCP-GENL Prompt Engineering Practice Question
Exhibit
{"model_config": {"temperature": 0.2, "max_tokens": 512, "stop_sequences": ["Human:", "User:"], "system_prompt": "You are a helpful assistant. You must answer based on the provided technical manuals."}}Refer to the exhibit. Given this NeMo configuration, which prompt modification would best improve the reliability of technical support queries?
⚠ Common exam trap
Test-takers frequently choose to adjust model temperature or top-p sampling parameters instead of modifying the system prompt to explicitly handle missing data scenarios.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Require the model to state 'I cannot answer this' if the manual is silent.
The exhibit shows a relatively low temperature, which is good for consistency, but the system prompt lacks specific constraints on how to handle missing data. By modifying the prompt to strictly enforce grounding in the manuals and providing a fallback mechanism, you significantly improve the model's reliability in technical support scenarios. This is a critical step for maintaining quality in production environments utilizing NVIDIA NeMo technology.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Append 'Be as creative as possible' to the system prompt.
Why it's wrong here
Increasing creativity in a technical support context is dangerous, as it promotes hallucination. Technical manuals require high precision and factual adherence; prompting for creativity encourages the model to drift away from the source material, which is exactly the behavior you want to avoid in professional documentation support.
- ✗
Change the stop sequences to be empty.
Why it's wrong here
Stop sequences are essential for preventing the model from continuing to generate text after the answer is finished, such as simulating a user response. Removing these markers increases the likelihood of runaway generation and model drift, which reduces the overall professionalism and utility of the generated response.
- ✓
Require the model to state 'I cannot answer this' if the manual is silent.
Why this is correct
This specific instruction provides a clear 'exit path' for the model when the provided context is inadequate. By explicitly defining the behavior for unsupported queries, you prevent the model from guessing or fabricating answers, which is crucial for maintaining the trust and reliability of your technical documentation bot.
- ✗
Increase the temperature to 0.9 to ensure varied answers.
Why it's wrong here
Raising the temperature to 0.9 would introduce significant randomness into the output, which is detrimental for technical tasks. In professional support scenarios, you want deterministic and consistent answers based on documentation. High temperatures make the model unreliable, leading to inconsistent guidance that frustrates users seeking accurate technical information.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official NVIDIA exam blueprint
This NCP-GENL practice question is part of Courseiva's free NVIDIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the NCP-GENL exam.