Which normal form requires that every determinant is a candidate key? MCQ with Answer and Explanation

Question
Which normal form requires that every determinant is a candidate key?
A. 1NF
B. 2NF
C. 3NF
D. BCNF
Answer: Option D
Solution (By JKSSB Mock Tests)
Boyce-Codd Normal Form (BCNF) is a stricter version of 3NF where every determinant must be a candidate key.
This question belongs to: Computer Database Management System (DBMS)
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Question #1
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)
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Correct Answer: Option D

Explanation:
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)
Question #2
In SQL, which statement is used to create a new database?
A. CREATE SCHEMA
B. NEW DATABASE
C. CREATE DATABASE
D. CREATE TABLE
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Correct Answer: Option C

Explanation:
CREATE DATABASE is used to create a new database in SQL.
This question belongs to: Computer Database Management System (DBMS)
Question #3
In SQL, the WHERE clause is used in:
A. Only INSERT statements
B. SELECT, UPDATE, DELETE statements
C. Only CREATE statements
D. Only SELECT statements
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Correct Answer: Option B

Explanation:
WHERE clause filters records in SELECT, UPDATE, and DELETE operations.
This question belongs to: Computer Database Management System (DBMS)
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