What is the difference between a database and a database management system? MCQ with Answer and Explanation

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What is the difference between a database and a database management system?

A. Database is a file; DBMS is a table

B. DBMS is the data; database is the software

C. A database is the data; DBMS is the software that manages it

D. They are the same

Answer: Option C

Solution (By JKSSB Mock Tests)

A database is a collection of structured data, while a DBMS is the software used to interact with and manage that data.

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

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Practice More Database Management System (DBMS) Questions

Question #1

What is a primary key in a database table?

A. A key that references a column in another table

B. A key that can contain duplicate values

C. A key that uniquely identifies each row in a table

D. A key that is always numeric

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Correct Answer: Option C

Explanation:
A primary key is a column or set of columns that uniquely identifies each row in a table, ensuring entity integrity.

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

Question #2

Which type of subquery executes once for each row evaluated by the outer query, depending on values provided by the outer statement?

A. Correlated Subquery

B. Independent Subquery

C. Scalar Subquery

D. Static Subquery

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Correct Answer: Option A

Explanation:
A Correlated Subquery is an inner query that references columns from the outer query, meaning it must be executed repeatedly for each row evaluated by the outer query.

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

Question #3

In an Entity-Relationship (ER) diagram, what geometric shape is used to represent an entity type?

A. Rectangle

B. Diamond

C. Triangle

D. Ellipse

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Correct Answer: Option A

Explanation:
In standard ER modeling notation, rectangles are used to represent entity sets or entity types.

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

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