What is the primary difference between data and information? MCQ with Answer and Explanation

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What is the primary difference between data and information?

A. Data refers to hardware, information to software

B. Data is raw facts, while information is processed data

C. There is no difference between data and information

D. Data is always structured, information is unstructured

Answer: Option B

Solution (By JKExamLibrary)

Data consists of raw, unprocessed facts, whereas information is data that has been processed and given meaning for decision-making.

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

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The command to modify existing records in a table is:

A. UPDATE

B. MODIFY

C. CHANGE

D. ALTER

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Correct Answer: Option A

Explanation:
UPDATE is the DML command used to modify data in existing rows.

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

Question #2 Report Error

The total number of attributes (columns) present in a relation determines its what?

A. Schema

B. Domain

C. Cardinality

D. Degree

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Correct Answer: Option D

Explanation:
The number of attributes or columns in a relation is defined as the degree of that relation.

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

Question #3 Report Error

In DBMS, what is the role of a DBA?

A. Database Administrator who manages the database system

B. Dynamic Binary Analyzer

C. Database Application Builder

D. Data Backup Assistant

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Correct Answer: Option A

Explanation:
The Database Administrator (DBA) is responsible for designing, implementing, maintaining, and securing the database.

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

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