Which of the following describes an 'Entity' in database terms? MCQ with Answer and Explanation

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Which of the following describes an 'Entity' in database terms?

A. A line connecting tables.

B. An action or method inside code.

C. A real-world object or concept that is distinguishable from other objects and about which data is stored.

D. A physical server rack.

Answer: Option C

Solution (By JKSSB Mock Tests)

An Entity is a distinguishable real-world object, place, person, or concept captured within a database schema (e.g., Customer, Product).

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

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Practice More Database Management System (DBMS) Questions

Question #1

What is the default sorting order when using the ORDER BY clause in an SQL statement?

A. Ascending

B. Descending

C. Alphabetic only

D. Random

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Correct Answer: Option A

Explanation:
By default, the ORDER BY clause sorts the query results in ascending order unless specified otherwise using the DESC keyword.

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

Question #2

What is the term for a column in a database table?

A. Attribute

B. Tuple

C. Relation

D. Entity

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Correct Answer: Option A

Explanation:
An attribute is a column or field in a table, representing a property of the entity.

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

Question #3

Which type of database storage anomaly occurs when adding new data to a table is blocked because other unrelated data is missing?

A. Deletion Anomaly

B. Modification Anomaly

C. Insertion Anomaly

D. Update Anomaly

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Correct Answer: Option C

Explanation:
An Insertion Anomaly occurs when certain facts cannot be recorded in a database table without falsely manufacturing or requiring the presence of other unrelated facts.

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

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