Implement knowledge mining and information extraction solutions →mediumMultiple ChoiceObjective-mapped
AI-102 Practice Question: Implement knowledge mining and information extraction solutions
You are designing a knowledge mining solution for a publishing company that needs to extract metadata from thousands of book manuscripts in various formats (PDF, Word, EPUB). The solution must identify authors, publication dates, and chapter titles. You are using Microsoft Foundry with Azure AI Search and Azure AI Document Intelligence. The manuscripts are stored in Azure Blob Storage. You need to ensure that the solution can handle all file formats. You have configured a skillset with a Document Intelligence skill for the PDFs and Word documents. However, the EPUB files are not being processed. What should you do to include EPUB files in the enrichment pipeline?
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
✓
Develop a custom skill that converts EPUB files to plain text and add it to the skillset.
Azure AI Search indexer does not natively support EPUB files. The Document Intelligence skill can only process formats it supports (PDF, Word, etc.). Therefore, a custom skill is needed to convert EPUB files to plain text or a supported format before they can be processed by the enrichment pipeline. Option A is wrong because Azure AI Document Intelligence does not support EPUB directly. Option C is wrong because the Document Intelligence skill cannot be modified to accept new formats. Option D is wrong because registering a new data source type does not enable processing of unsupported file formats.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Azure AI Document Intelligence to extract text from EPUB files directly.
Why it's wrong here
Document Intelligence does not support EPUB files.
- ✓
Develop a custom skill that converts EPUB files to plain text and add it to the skillset.
Why this is correct
A custom skill can convert unsupported formats into text that the pipeline can process.
- ✗
Modify the Document Intelligence skill to accept EPUB files.
Why it's wrong here
Document Intelligence does not support EPUB; it cannot be modified to do so.
- ✗
Register a new data source type for EPUB in Azure AI Search.
Why it's wrong here
Azure AI Search has a fixed set of data source types; EPUB is not supported.
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
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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.