Q85 — AWS AIF-C01 Ch.2

Question 85 of 100 | ← Chapter 2

A company built an AI chatbot to answer employee questions. Some employees report that generated responses are nonsensical relative to the questions asked. Which concept does this describe?

• A. Underfitting
• B. Hallucination ✓
• C. Overfitting
• D. Bias

Correct Answer: B. Hallucination

Explanation

Hallucination refers to the phenomenon where a generative AI model produces factually incorrect, irrelevant, or nonsensical outputs — despite appearing confident — due to limitations in training data, model architecture, or prompt alignment. This matches the scenario where chatbot responses bear no logical relation to user queries. Underfitting describes poor generalization due to insufficient model complexity. Overfitting reflects excessive memorization of training data. Bias refers to systematic errors stemming from skewed data or design. Thus, the correct answer is B, Hallucination.