AI0-001 AI Concepts and Foundations Practice Question
An AI system is deployed to detect fraudulent transactions. The system flags 5% of transactions as fraudulent, but the actual fraud rate is 0.1%. The business sees many false positives and wants to reduce them without significantly increasing false negatives. Which metric should be prioritized for optimization?
⚠ Common exam trap
CompTIA often tests the misconception that precision is the best metric for reducing false positives, but the trap here is that precision alone ignores the impact on false negatives, which the business explicitly wants to avoid increasing.
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
✓
F1 score
The F1 score balances precision and recall, making it ideal when false positives are costly but false negatives must not increase significantly. Optimizing precision alone would reduce false positives but could increase false negatives, while recall alone would not address the false positive problem. The F1 score ensures both metrics are jointly optimized, aligning with the business requirement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Recall
Why it's wrong here
Maximizing recall increases true positive rate but often increases false positives, which is already a problem.
- ✓
F1 score
Why this is correct
F1 score balances precision and recall, allowing trade-off to reduce false positives while maintaining reasonable recall.
- ✗
Accuracy
Why it's wrong here
Accuracy is misleading with imbalanced classes; it can be high even with many false positives.
- ✗
Precision
Why it's wrong here
Precision alone would reduce false positives but may increase false negatives, which is not fully addressed.
About these practice questions
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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.