Who proposed the relational database model based on mathematical relation theory in 1970? MCQ with Answer and Explanation

Question
Who proposed the relational database model based on mathematical relation theory in 1970?
A. James Gosling
B. Charles Bachman
C. Dennis Ritchie
D. E.F. Codd
Answer: Option D
Solution (By JKSSB Mock Tests)
Dr. Edgar Frank Codd (E.F. Codd) invented the relational model for database management while working for IBM in 1970.
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 stored procedure?
A. A trigger
B. A view
C. An index
D. A set of precompiled SQL statements that can be executed as a single unit
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Correct Answer: Option D

Explanation:
A stored procedure is a named collection of SQL statements and logic stored in the database, which can be invoked by applications.
This question belongs to: Computer Database Management System (DBMS)
Question #2
The intentional process of introducing redundant data into a normalized database structure to optimize read query performance is called what?
A. Normalization
B. Fragmentation
C. Denormalization
D. Decomposition
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Correct Answer: Option C

Explanation:
Denormalization is a strategy applied to normalized databases where redundant data is selectively added to speed up complex read queries by minimizing costly table joins.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which of the following best defines a Database?
A. Hardware used to store programs
B. Software for creating spreadsheets
C. A collection of related data organized for easy access
D. A single file containing text
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Correct Answer: Option C

Explanation:
A database is an organized collection of related data stored electronically for efficient retrieval and management.
This question belongs to: Computer Database Management System (DBMS)
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