Implement knowledge mining and information extraction solutions →easyMultiple ChoiceObjective-mapped
AI-102 Practice Question: Implement knowledge mining and information extraction solutions
You are building a knowledge mining solution using Azure AI Search. You need to ensure that sensitive information such as credit card numbers is automatically removed from the indexed content. Which built-in skill should you add to your skillset?
⚠ Common exam trap
Test-takers frequently confuse the Entity Recognition skill (which can identify entities but not redact them) with the PII Detection skill, assuming that entity extraction inherently includes removal, when in fact redaction requires a separate skill designed for that purpose.
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
✓
PII Detection skill
The PII Detection skill is the correct built-in skill for automatically identifying and redacting sensitive information like credit card numbers from indexed content in Azure AI Search. It uses pre-trained models to detect patterns such as credit card numbers, social security numbers, and other personally identifiable information, and can either mask or remove them from the text before it is stored in the search index.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Entity Recognition skill
Why it's wrong here
Entity Recognition can detect entities like people, but does not redact sensitive data by default.
- ✗
Conditional skill
Why it's wrong here
The Conditional skill is used for conditional logic, not for detecting or redacting PII.
- ✓
PII Detection skill
Why this is correct
The PII Detection skill can identify and redact sensitive information like credit card numbers.
- ✗
Text Translation skill
Why it's wrong here
Text Translation translates text; it does not handle PII.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AI-102 practice question is part of Courseiva's free Microsoft 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 AI-102 exam.