Database Systems MCQs – Practice Test for Exam Prep

Database Keys Multiple Choice Questions with Answers – PDF Download

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Free Database Keys MCQ App Download: "A set of one or more attributes that collectively, allow us to identify uniquely a tuple in the relation, is known as"; MCQ with answers: unique key, special key, super key, and primary key. Practice Database Keys Quiz Questions, download Apple Book (Free Chapter) to achieve DBMS excellence.

Database Keys MCQs PDF Download – Prep Test

MCQ 1: A set of one or more attributes that collectively, allow us to identify uniquely a tuple in the relation, is known as:

Unique key
Special key
Super key
Primary key

MCQ 2: No two tuples in a relation are allowed to have exactly the same value for:

Some attributes
All attributes
Some tuple
All tuples

MCQ 3: Specifying tuples within a given relation, are expressed in terms of the:

Attributes
Variables
Function
Domain

MCQ 4: A superkey may contain extraneous:

Attributes
Keys
Instances
Entries

MCQ 5: The values of the attribute values of a tuple must be such that they can uniquely identify the:

Instance
Entity
Relation
Tuple

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