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CBSE Class 12 Information Storage & Retrieval Marking Scheme 2027

Title	Year	Action
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Frequently Asked Questions

What are the challenges in information retrieval?

Challenges include handling large volumes of unstructured data, ensuring privacy and security during searches, and delivering accurate results amidst diverse user queries.

What is Boolean logic in search queries?

Boolean logic uses operators like AND, OR, NOT to refine search queries by combining or excluding terms to filter search results effectively.

What impact do algorithms have on retrieval processes?

Algorithms determine how efficiently a system can locate relevant information by prioritising certain factors like keyword relevance or user behaviour patterns.

How do relational databases organise data?

Relational databases organise data into tables with rows and columns. Each table represents an entity type with attributes defining its properties.

Why are backup systems crucial for information storage?

Backup systems create copies of important data that can be restored if original files are lost due to accidental deletion or disasters like fires or floods.