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DC
Question Practice

Which of the following best describes a candidate key?

Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.

MCQ_SA
CBSE
Class 12
Computer Science
Computer Science
Database Concepts
Question Bank

Which of the following best de...

Single Answer MCQ
Q-00095154

Which of the following best describes a candidate key?

1

The primary key selected by the database designer.

2

An attribute or combination of attributes that can uniquely identify tuples.

3

An attribute that may contain NULL values.

4

Whenever no attributes exist in a relation.

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