Relational Database Model Quiz

Relational Database Model Quiz

University

17 Qs

quiz-placeholder

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Relational Database Model Quiz

Relational Database Model Quiz

Assessment

Quiz

Information Technology (IT)

University

Easy

Created by

Bonito undefined

Used 1+ times

FREE Resource

17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relational model based on?

Predicate logic and set theory

Only set theory

Only predicate logic

None of the above

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a table (relation) represent?

A one-dimensional structure

A two-dimensional structure

A three-dimensional structure

None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a primary key?

A key that can contain null entries

A candidate key selected to uniquely identify all other attribute values

A superkey without any unnecessary attributes

None of the above

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is functional dependence?

The value of one or more attributes determines the value of one or more other attributes

The state in which knowing the value of an attribute makes it possible to determine the value of another

Both A and B

None of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of integrity rules?

To maintain a good database design

To ensure all data is consistent

Both A and B

None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an example of a foreign key?

STU_NUM

STU_SECT

STU_LNAME

STU_FNAME

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does entity integrity ensure?

Each row in a table has its own unique identity

All primary key entries are unique

Both A and B

None of the above

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