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Custom Text Classification for Ticket Categorization

A company wants to automatically categorize support tickets into categories such as 'Billing', 'Technical Issue', and 'Account Management'. They have a set of 1,000 labeled tickets that they can use to train a model. Which Azure AI Language feature should they use?

Quick Answer

The answer is custom text classification, because it is the Azure AI Language feature designed to train a model on your own labeled dataset—such as the 1,000 tickets here—to categorize text into user-defined classes like 'Billing', 'Technical Issue', and 'Account Management'. Unlike pre-built classification options that only recognize fixed categories, custom text classification learns from your specific examples, making it ideal for ticket categorization where the categories are unique to your business. On the AI-900 exam, this question tests your understanding of when to choose a custom solution versus a pre-built one; a common trap is selecting a pre-built sentiment or key phrase extraction feature, which cannot handle custom labels. Remember the memory tip: if you have your own labeled data and custom categories, think “custom” for custom text classification.

⚠ Common exam trap

Many candidates confuse custom text classification with pre-built features like key phrase extraction or sentiment analysis, assuming any NLP feature can categorize text without realizing custom training is required for specific categories.

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

Custom text classification

Custom text classification is the correct choice because it allows you to train a model on your own labeled dataset (1,000 tickets) to categorize text into custom-defined classes like 'Billing', 'Technical Issue', and 'Account Management'. This feature is specifically designed for scenarios where you need to classify documents into user-defined categories, unlike pre-built classification options.

Answer analysis

Option-by-option breakdown

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

  • Key phrase extraction

    Why it's wrong here

    Key phrase extraction identifies important words and phrases but does not perform categorization into user-defined classes.

  • Custom text classification

    Why this is correct

    Custom text classification is the correct feature because it allows training a model with labeled examples to assign tickets to custom categories like 'Billing' or 'Technical Issue'.

  • Sentiment analysis

    Why it's wrong here

    Sentiment analysis evaluates the emotional tone of text (positive, negative, neutral) and is not designed to classify text into topic categories.

  • Language detection

    Why it's wrong here

    Language detection identifies the language of the text (e.g., English, Spanish) and does not provide topic-based categorization.

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Same concept, more angles

1 more way this is tested on AI-900

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Variation 1. A law firm wants to automatically categorize incoming legal documents into custom categories such as 'Motion', 'Contract', 'Discovery', and 'Memorandum'. The firm has a set of manually labeled documents that can be used to train the system. Which Azure AI Language feature should they use?

medium
  • A.Prebuilt Text Analytics for sentiment
  • B.Custom text classification
  • C.Conversational Language Understanding
  • D.Key phrase extraction

Why B: The law firm needs to categorize documents into custom categories using their own labeled data. Custom text classification in Azure AI Language is specifically designed for this purpose, allowing you to train a model on your own labeled documents to classify text into user-defined categories. Prebuilt Text Analytics for sentiment only detects sentiment (positive/negative/neutral), not custom categories.

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This AI-900 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-900 exam.