AI-102 Practice Question: Implement natural language processing solutions
You need to analyze customer service call transcripts to identify common issues. The solution must extract key phrases, detect sentiment, and identify the language used. The transcripts are stored in Azure Blob Storage. Which Azure AI Language feature should you use to process them asynchronously?
⚠ Common exam trap
Candidates often confuse the synchronous Text Analytics API (which is for real-time, small-scale requests) with the asynchronous version required for batch processing from Blob Storage, or they mistakenly think Opinion Mining or Custom Classification can handle all three tasks (key phrases, sentiment, language) simultaneously.
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
✓
Async Text Analytics API
The Async Text Analytics API (now part of Azure AI Language's asynchronous operations) is designed for batch processing of documents stored in Azure Blob Storage. It supports key phrase extraction, sentiment analysis, and language detection in a single asynchronous call, making it ideal for processing large volumes of customer service call transcripts without blocking the application.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Conversational Summarization API
Why it's wrong here
Designed for summarization, not general analytics.
- ✗
Custom Text Classification API
Why it's wrong here
Requires custom training and does not perform key phrase extraction.
- ✓
Async Text Analytics API
Why this is correct
Supports asynchronous processing with multiple analytics capabilities.
- ✗
Opinion Mining API
Why it's wrong here
Only extracts opinions.
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.