Artificial Intelligence — CBSE Class 10 board question

| Example | Domain | Justification |
|---|---|---|
| (a) Recommendation Websites | Data Science (Statistical Data) | They collect and analyse large amounts of user data to suggest products/content, deriving meaningful insights from datasets. |
| (b) Voice-based Virtual Assistants | NLP | They interact with humans using natural spoken language; NLP algorithms decode and respond to human speech. |
| (c) Spam Filters | NLP | They detect certain words/phrases in emails to identify spam — one of the earliest NLP applications. |
| (d) Airline Route Planning | Data Science (Statistical Data) | They analyse large statistical datasets (weather, fuel, traffic) to extract insights and optimise flight routes. |

Source: Chapter 1, Section 1.2 — Introduction to AI Domains

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• Key rule: AI domains are categorised by the type of data fed into the model — Statistical Data, NLP, or Computer Vision.
• Recommendation/route-planning → statistical/numerical data → Data Science.
• Voice assistants and spam filters both deal with natural language (spoken or written) → NLP.
• Examiners award 1 mark per correct categorisation with valid justification. Simply naming the domain without justification risks losing the mark.
• Note: The passage explicitly lists email/spam filters as an NLP example — quote it directly for full marks.