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Question Practice

What is the role of alternate keys in a database?

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

MCQ_SA
CBSE
Class 11
Informatics Practices
Informatics Practices
Database Concepts
Question Bank

What is the role of alternate ...

Single Answer MCQ
Q-00066967

What is the role of alternate keys in a database?

1

They serve as a backup for null values

2

They provide additional unique identifiers aside from primary key

3

They automatically generate unique records

4

They combine attributes to create a unique identifier

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