- A
Use a different foundation model
Why wrong: A different model may still have biases; RLHF is targeted.
- B
Add more positive examples to training data
Why wrong: This may increase bias toward positive sentiment.
- C
Increase training epochs
Why wrong: More epochs can lead to overfitting and reinforce bias.
- D
Perform RLHF (Reinforcement Learning from Human Feedback) to align outputs
RLHF uses human feedback to reduce undesirable biases.
Question 494 of 1,000
AIF-C01 Applications of Foundation Models Practice Question
This AIF-C01 practice question tests your understanding of applications of foundation models. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company fine-tunes a foundation model on SageMaker JumpStart for sentiment analysis. After deployment, the model shows bias toward positive sentiment. Which action should be taken to mitigate bias?
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
✓
Perform RLHF (Reinforcement Learning from Human Feedback) to align outputs
RLHF (Reinforcement Learning from Human Feedback) is the correct approach because it directly addresses the misalignment between the model's outputs and desired human values. By collecting human feedback on model outputs and using it to train a reward model, RLHF fine-tunes the foundation model to reduce biased behavior, such as the over-prediction of positive sentiment, without simply reweighting the training data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a different foundation model
Why it's wrong here
A different model may still have biases; RLHF is targeted.
- ✗
Add more positive examples to training data
Why it's wrong here
This may increase bias toward positive sentiment.
- ✗
Increase training epochs
Why it's wrong here
More epochs can lead to overfitting and reinforce bias.
- ✓
Perform RLHF (Reinforcement Learning from Human Feedback) to align outputs
Why this is correct
RLHF uses human feedback to reduce undesirable biases.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the misconception that bias is solely a data quantity issue, leading candidates to incorrectly choose adding more examples (Option B) instead of recognizing that alignment techniques like RLHF are required to correct model behavior after training.
Detailed technical explanation
How to think about this question
RLHF works by first collecting human preference comparisons between model outputs, then training a reward model to predict those preferences, and finally using Proximal Policy Optimization (PPO) to fine-tune the foundation model to maximize the reward. This process directly optimizes for alignment with human values, which is critical for mitigating subtle biases that are not captured by simple data augmentation or model swapping. In real-world scenarios, RLHF has been used to reduce toxic language and improve helpfulness in large language models like GPT-4.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
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FAQ
Questions learners often ask
What does this AIF-C01 question test?
Applications of Foundation Models — This question tests Applications of Foundation Models — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Perform RLHF (Reinforcement Learning from Human Feedback) to align outputs — RLHF (Reinforcement Learning from Human Feedback) is the correct approach because it directly addresses the misalignment between the model's outputs and desired human values. By collecting human feedback on model outputs and using it to train a reward model, RLHF fine-tunes the foundation model to reduce biased behavior, such as the over-prediction of positive sentiment, without simply reweighting the training data.
What should I do if I get this AIF-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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