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AI-102 Optical Character Recognition (OCR) Practice Question
Which THREE Azure AI services can be used to extract text from images?
⚠ Common exam trap
The trap is that candidates may overlook Azure AI Search as a text extraction service because it is not a dedicated OCR service, but it can indeed extract text from images when configured with an OCR skill.
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
✓
Azure AI Search
The question asks for three Azure AI services that can extract text from images. Azure AI Document Intelligence layout model (C) and Azure AI Vision OCR (D) are direct text extraction services. Azure AI Search (B) can also extract text from images by using OCR as a built-in cognitive skill in an enrichment pipeline. Option A (Speech) processes audio, not images. Option E (Language custom NER) works only on pre-extracted text. Therefore, the correct options are B, C, and D.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Azure AI Speech
Why it's wrong here
Azure AI Speech converts speech to text or synthesizes speech, but it does not extract text from images. It only processes audio input.
- ✓
Azure AI Search
Why this is correct
Azure AI Search can extract text from images by leveraging OCR skills (e.g., Azure AI Vision OCR) within a cognitive search enrichment pipeline, making it a valid service for this purpose.
- ✓
Azure AI Document Intelligence layout model
Why this is correct
Azure AI Document Intelligence layout model is specifically designed to extract text, tables, and structure from documents and images, making it directly applicable.
- ✓
Azure AI Vision OCR
Why this is correct
Azure AI Vision OCR (Optical Character Recognition) is a dedicated service to extract printed or handwritten text from images, so it is correct.
- ✗
Azure AI Language custom NER
Why it's wrong here
Azure AI Language custom NER extracts named entities from text but cannot process images; it requires pre-extracted text as input.
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