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AI-102 Practice Question: Implement knowledge mining and information extraction solutions

You are building a solution to extract key information from scanned invoices. The invoices are in PDF format and contain both printed and handwritten fields. Which Azure AI service should you use?

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 Document Intelligence (formerly Form Recognizer)

Azure AI Document Intelligence (formerly Form Recognizer) is the correct service because it is specifically designed to extract text, key-value pairs, and tables from documents like scanned invoices, and it supports both printed and handwritten text. Option A (Language Service) is used for text analytics and NLP, not structured document extraction. Option B (Speech Service) handles audio transcription and speech, not documents. Option C (Computer Vision) can extract text via OCR but is less specialized than Document Intelligence for invoice-specific extraction.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Language Service

    Why it's wrong here

    Language Service is used for text analytics and natural language processing, not for extracting structured data from documents.

  • Speech Service

    Why it's wrong here

    Speech Service is designed for speech recognition and audio processing, not for processing scanned invoices.

  • Computer Vision

    Why it's wrong here

    Computer Vision lacks the specialised document understanding models required to extract structured fields like invoice totals or vendor names from mixed printed and handwritten PDFs; it performs general image analysis rather than key-value pair extraction. It is tempting because its optical character recognition (OCR) can read text from images, and it would be correct for scenarios needing only raw text extraction from photographs or scanned documents without layout-aware parsing.

  • Azure AI Document Intelligence (formerly Form Recognizer)

    Why this is correct

    Azure AI Document Intelligence (formerly Form Recognizer) is the correct choice because it is built for extracting information from forms and documents, including printed and handwritten text, and provides prebuilt models for invoices.

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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.