What is a column in a relational database table formally called? MCQ with Answer and Explanation

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What is a column in a relational database table formally called?

A. Degree

B. Entity

C. Tuple

D. Attribute

Answer: Option D

Solution (By JKSSB Mock Tests)

A column in a database table represents a property or characteristic of the entity and is formally known as an attribute.

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

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Question #1

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In a Relational Database Management System (RDBMS), data is logically organized and stored in which form?

A. Graphs

B. Tables

C. Flat text files

D. Trees

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Correct Answer: Option B

Explanation:
In an RDBMS, data is organized into relations, which are logically represented as two-dimensional tables consisting of rows and columns.

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

Question #2

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What geometric symbol is used in an Entity-Relationship (ER) diagram to represent a relationship between entities?

A. Circle

B. Diamond

C. Oval

D. Rectangle

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Correct Answer: Option B

Explanation:
Diamonds are utilized in ER diagrams to depict relationships between two or more entities.

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

Question #3

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What is a domain in the context of the relational model?

A. A foreign key

B. A primary key

C. A set of allowed values for an attribute

D. A table name

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Correct Answer: Option C

Explanation:
A domain defines the set of permissible values that an attribute can take, ensuring data consistency.

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

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