Question

How does Clustering contribute to database performance improvement?

a.

Rearranging data randomly

b.

Physically separating database files

c.

Distributing files across multiple storage media

d.

Keeping database files physically close for sequential pre-fetch operations

Posted under Data Warehousing and OLAP

Answer: (d).Keeping database files physically close for sequential pre-fetch operations Explanation:Clustering is a method of keeping database files physically close to one another on the storage media, improving performance through sequential pre-fetch operations.

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