AI0-001 AI Concepts and Techniques Practice Question
A model trained on customer reviews achieves 98% accuracy on the test set. However, when deployed, it performs poorly on real-world data. The data scientist suspects distribution shift. Which action is MOST important to address this?
⚠ Common exam trap
CompTIA often tests the misconception that high test accuracy guarantees real-world performance, leading candidates to focus on training improvements (like tuning hyperparameters or adding features) rather than addressing the root cause of distribution shift through monitoring and retraining.
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
✓
Implement a monitoring system to detect data drift and retrain with fresh data
Distribution shift (data drift) causes the model's training distribution to differ from the real-world distribution, degrading performance despite high test accuracy. Implementing a monitoring system to detect drift and retraining with fresh data directly addresses this by ensuring the model adapts to the current data distribution, which is the most critical action for maintaining performance in production.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Reduce the learning rate during training
Why it's wrong here
Learning rate affects training convergence, not distribution shift after deployment.
- ✓
Implement a monitoring system to detect data drift and retrain with fresh data
Why this is correct
Detecting drift and retraining with representative data directly addresses distribution shift.
- ✗
Add more features to the model
Why it's wrong here
Adding features might improve performance on the current distribution but does not fix shift.
- ✗
Increase the number of cross-validation folds
Why it's wrong here
Cross-validation assesses generalization on the existing data, not on new distributions.
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.