AI0-001 AI Concepts and Foundations Practice Question
A company deploys a chatbot using a large language model (LLM). After launch, users report that the chatbot sometimes generates plausible but false information. This phenomenon is known as:
⚠ Common exam trap
Watch out — candidates often confuse hallucination with overfitting, thinking the model is 'making up' data due to memorization errors, but overfitting is about poor generalization to new inputs, not confident false outputs from a well-generalized model.
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
✓
Hallucination
Hallucination in LLMs refers to the generation of plausible but factually incorrect or nonsensical information. This occurs when the model's probabilistic next-token prediction produces confident-sounding outputs that deviate from training data or real-world facts, often due to insufficient grounding or training data gaps.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Gradient explosion
Why it's wrong here
Incorrect; gradient explosion is a training instability, not output behavior.
- ✗
Overfitting
Why it's wrong here
Incorrect; overfitting relates to generalization, not factual accuracy.
- ✗
Concept drift
Why it's wrong here
Incorrect; concept drift is about shifting relationships, not false outputs.
- ✓
Hallucination
Why this is correct
Correct; LLMs often produce false information convincingly.
About these practice questions
Courseiva writes every AI0-001 question from scratch — 754 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AI0-001 practice question is part of Courseiva's free CompTIA 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 AI0-001 exam.