Which normal form requires that all attributes in a table contain only atomic, indivisible values, and prohibits multi-valued attributes? MCQ with Answer and Explanation

Question
Which normal form requires that all attributes in a table contain only atomic, indivisible values, and prohibits multi-valued attributes?
A. Second Normal Form (2NF)
B. Third Normal Form (3NF)
C. Boyce-Codd Normal Form (BCNF)
D. First Normal Form (1NF)
Answer: Option D
Solution (By JKSSB Mock Tests)
A relation is in First Normal Form (1NF) if and only if the domain of every attribute contains only atomic (indivisible) values, and no repeating groups exist.
This question belongs to: Computer Database Management System (DBMS)
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Practice More Database Management System (DBMS) Questions

Question #1
Which command is used to retrieve data from a database?
A. INSERT
B. DELETE
C. SELECT
D. UPDATE
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Correct Answer: Option C

Explanation:
The SELECT statement is used in SQL to query and retrieve data from tables.
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. Fragmentation
B. Normalization
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
What is a candidate key in a relation?
A. A foreign key
B. Any column that can be used as a primary key
C. A key that is not unique
D. A super key that is minimal
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Correct Answer: Option D

Explanation:
A candidate key is a minimal super key, meaning no subset of it can uniquely identify a row.
This question belongs to: Computer Database Management System (DBMS)
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