What is metadata? MCQ with Answer and Explanation

Question

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What is metadata?

A. Backup data

B. Temporary data

C. Data about data

D. User data

Answer: Option C

Solution (By JKSSB Mock Tests)

Metadata is data that provides information about other data, such as structure and constraints.

This question belongs to: Computer Database Management System (DBMS)

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Practice More Database Management System (DBMS) Questions

Question #1

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Which clause must be used instead of WHERE to filter or restrict rows after an aggregation or group-by operation has been performed?

A. WHEN

B. RESTRICT

C. WHERE CURRENT OF

D. HAVING

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Correct Answer: Option D

Explanation:
The HAVING clause was added to SQL because the WHERE keyword cannot be applied to aggregate functions; it filters groups generated by the GROUP BY clause.

This question belongs to: Computer Database Management System (DBMS)

Question #2

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What is the main purpose of indexing in a database?

A. To speed up data retrieval

B. To encrypt data

C. To delete data

D. To backup data

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Correct Answer: Option A

Explanation:
Indexes improve the speed of data retrieval operations on a database table.

This question belongs to: Computer Database Management System (DBMS)

Question #3

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What is data redundancy?

A. Duplication of data in multiple places

B. Processed information

C. Absence of data

D. Encrypted data

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Correct Answer: Option A

Explanation:
Data redundancy refers to unnecessary duplication of data, which DBMS helps control.

This question belongs to: Computer Database Management System (DBMS)

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