AI0-001 AI Concepts and Foundations Practice Question
An AI team notices that their model's performance degrades over time because the statistical relationship between input features and the target variable changes. This issue is called:
⚠ Common exam trap
CompTIA often tests the distinction between data drift and concept drift, where candidates mistakenly choose data drift because they focus on the input features changing, rather than the relationship between features and the target.
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
✓
Concept drift
Concept drift occurs when the statistical relationship between input features and the target variable changes over time, causing model performance to degrade. This is distinct from data drift, which involves changes in the input data distribution alone. In the AI0-001 context, concept drift directly addresses the shift in the underlying mapping from features to labels.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Data drift
Why it's wrong here
Incorrect; data drift refers to changes in input distribution, not the relationship.
- ✗
Overfitting
Why it's wrong here
Incorrect; overfitting is about training vs. generalization, not time-based shifts.
- ✓
Concept drift
Why this is correct
Correct; concept drift describes changes in the mapping from inputs to outputs.
- ✗
Model drift
Why it's wrong here
Incorrect; model drift is a general term for performance decay, not specific to relationship changes.
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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.