AIF-C01 Fundamentals of AI and ML Practice Question
A company is using Amazon Fraud Detector to detect fraudulent transactions. Which TWO actions can be taken to improve model accuracy? (Select TWO.)
⚠ Common exam trap
The AIF-C01 exam often tests the misconception that changing model versions or detector types alone improves accuracy, when in reality accuracy improvements require data or feature enhancements.
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
✓
Increase the volume of event data
Increasing the volume of event data provides Amazon Fraud Detector with more examples of both fraudulent and legitimate transactions, which allows the model to learn more robust patterns and reduce overfitting. More data helps the model generalize better to unseen events, directly improving prediction accuracy.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Increase the volume of event data
Why this is correct
More data can help the model learn better patterns.
- ✗
Deploy the model to multiple endpoints
Why it's wrong here
Scaling endpoints improves availability and throughput, not accuracy.
- ✗
Use a different detector type
Why it's wrong here
Detector type (e.g., online fraud vs. registration fraud) should match the use case; changing it does not inherently improve accuracy.
- ✗
Use a different model version
Why it's wrong here
Model versions contain the same algorithm; changing version does not guarantee improvement.
- ✓
Select event variables that are more predictive
Why this is correct
Choosing relevant features improves the model's predictive power.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AIF-C01 practice question is part of Courseiva's free Amazon Web Services 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 AIF-C01 exam.