AI-102 Practice Question: Implement natural language processing solutions
Which TWO Azure AI services can be used to build a multilingual question-answering bot that retrieves answers from a knowledge base of documents?
⚠ Common exam trap
The AI-102 exam often tests the distinction between services that process language (like LUIS or Translator) versus services that combine retrieval with generation (like Azure OpenAI with RAG) to answer questions from documents, leading candidates to mistakenly choose LUIS or Translator for a task that requires document-based Q&A.
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 OpenAI Service with a RAG pattern
The Azure OpenAI Service combined with a Retrieval-Augmented Generation (RAG) pattern allows you to ingest documents into a vector store, retrieve relevant chunks based on the user's query, and then generate a natural language answer using a large language model. This architecture inherently supports multilingual input and output because the underlying model (e.g., GPT-4) can process and generate text in many languages, making it ideal for a multilingual question-answering bot.
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 Language Understanding (LUIS)
Why it's wrong here
LUIS is for intent recognition, not for retrieving answers from documents.
- ✓
Azure OpenAI Service with a RAG pattern
Why this is correct
Azure OpenAI with RAG can retrieve answers from documents using embeddings.
- ✗
Azure AI Translator
Why it's wrong here
Translator is for translation, not for retrieving answers.
- ✗
Azure AI Document Intelligence
Why it's wrong here
Document Intelligence extracts structured data from forms, not for QA.
- ✓
Azure AI Language - Custom Question Answering
Why this is correct
Custom question answering is specifically for building QA bots over a knowledge base.
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About these practice questions
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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.